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Поволжский государственный технологический университет

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[НЕСОРТИРОВАННОЕ]

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ЦОС_Заочники2013 / Курсовая МПиЦОС 2011 / Справочная информация / Моторола / DSP568xx / DSP56852UM.pdf

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JTAG Boundary Scan Register (BSR)

Table 14-4. Device ID Register Bit Assignment

Bit No.	Code Use	56852 Values


31–28	Version Number	0000 (For initial version only—these bits may vary)

27–22	Freescale Design Center ID	00 0111

21–12	Family and part ID	11 0101 0100

11-1	Freescale Manufacturer ID	000 0000 1110

0	IEEE Requirement	Always 1

14.6 JTAG Bypass Register (JTAGBR)

The JTAG bypass register is a one-bit register used to provide a simple, direct path from the TDI pin to the TDO pin. This is useful in boundary scan applications where many chips are serially connected in a daisy-chain. Individual DSCs, or other devices, can be programmed with the BYPASS instruction so individually they become pass-through devices during testing. This allows testing of a specific chip, while still having all of the chips connected through the JTAG ports.

IR = $6, $7, $FF

Read/Write

Reset 0

Figure 14-5. JTAG Bypass Register (JTAGBR)

14.7 JTAG Boundary Scan Register (BSR)

The JTAG Boundary Scan Register (BSR) is configured as described in Figure 14-6. This register is enabled via the JTAG Master TAP by issuing the EXTEST, or SAMPLE_PRELOAD instructions enabling the boundary scan registers between TDI and TDO. Boundary Scan Register cell number one is connected to TDO making it the first data bit shifted into TDI. It is the first bit shifted out of TDO when loading and unloading the boundary scan chain. For the most current BSDL files, please refer to www.freescale.com. Figure 14-6 illustrates the register, while Table 14-5 provides the contents of the BSR for the 56852.

	IR = $0, $1, $3	337	336	335	334	333		Bits 332 through 5	4	3	2	1	0
	Read-Only
			Figure 14-6. Boundary Scan Register (BSR)
							JTAG Port, Rev. 4
Freescale Semiconductor													14-11

-packaged product lines and part numbers indicated here currently are not	2010: MC13892
Commission, BGA	prior to September
order from the United States International Trade Freescale for import or sale in the United States
of an from
Because	available

JTAG Boundary Scan Register (BSR)

Table 14-5. BSR Contents for 56852

Bit Number

Pin/Bit Name

Pin Type

BSR Cell

Pin Number

Input

BC_1

IRQA

Pull-up

BC_1

Input

BC_1

IRQB

Pull-up

BC_1

Input/Output

BC_7

CS0

Pull-up

BC_1

Enable

BC_2a

Input/Output

BC_7

CS1

Pull-up

BC_1

Enable

BC_2a

Input/Output

BC_7

CS2

Pull-up

BC_1

Enable

BC_2a

Input/Output

BC_7

Pull-up

BC_1

Enable

BC_2a

Input/Output

BC_7

Pull-up

BC_1

Enable

BC_2a

Input/Output

BC_7

Pull-up

BC_1

Enable

BC_2a

Input/Output

BC_7

Pull-up

BC_1

Enable

BC_2a

Input/Output

BC_7

Pull-up

BC_1

Enable

BC_2a

Input/Output

BC_7

Pull-up

BC_1

Enable

BC_2a

Input/Output

BC_7

Pull-up

BC_1

Enable

BC_2a

Input/Output

BC_7

Pull-up

BC_1

Enable

BC_2a

56852 Digital Signal Controller User Manual, Rev. 4

14-12

Freescale Semiconductor

-packaged product lines and part numbers indicated here currently are not	2010: MC13892
Commission, BGA	prior to September
order from the United States International Trade Freescale for import or sale in the United States
of an from
Because	available

JTAG Boundary Scan Register (BSR)

Table 14-5. BSR Contents for 56852 (Continued)

Bit Number	Pin/Bit Name	Pin Type	BSR Cell	Pin Number


37		Input/Output	BC_7
38	A6	Pull-up	BC_1	G2
39		Enable	BC_2a
40		Input/Output	BC_7
	A7			J1
41	A7	Pull-up	BC_1	J1

42		Enable	BC_2a

43		Input/Output	BC_7
44	A8	Pull-up	BC_1	H2
45		Enable	BC_2a
46		Input/Output	BC_7
	A9			H3
47	A9	Pull-up	BC_1	H3

48		Enable	BC_2a

49		Input/Output	BC_7
50	A10	Pull-up	BC_1	J2
51		Enable	BC_2a
52		Input/Output	BC_7
	A11			H4
53	A11	Pull-up	BC_1	H4

54		Enable	BC_2a

55		Input/Output	BC_7
56	A12	Pull-up	BC_1	G4
57		Enable	BC_2a
58		Input/Output	BC_7
	A13			J3
59	A13	Pull-up	BC_1	J3

60		Enable	BC_2a

61		Input/Output	BC_7
62	A14	Pull-up	BC_1	F5
63		Enable	BC_2a
64		Input/Output	BC_7
	A15			H5
65	A15	Pull-up	BC_1	H5

66		Enable	BC_2a

67		Input/Output	BC_7
68	A16	Pull-up	BC_1	E5
69		Enable	BC_2a
70		Input/Output	BC_7
	A17			F6
71	A17	Pull-up	BC_1	F6

72		Enable	BC_2a

73		Input/Output	BC_7
74	A18	Pull-up	BC_1	G5
75		Enable	BC_2a

	JTAG Port, Rev. 4
Freescale Semiconductor	14-13

-packaged product lines and part numbers indicated here currently are not	2010: MC13892
Commission, BGA	prior to September
order from the United States International Trade Freescale for import or sale in the United States
of an from
Because	available

JTAG Boundary Scan Register (BSR)

Table 14-5. BSR Contents for 56852 (Continued)

	Bit Number	Pin/Bit Name	Pin Type	BSR Cell	Pin Number


	76		Input/Output	BC_7
		A19			B8
	77	A19	Pull-up	BC_1	B8

	78		Enable	BC_2a

	79	A20	Input/Output	BC_7
	80	A20	Pull-up	BC_1	J8
	80	(CLK0)	Pull-up	BC_1	J8
	81		Enable	BC_2a
	82		Input/Output	BC_7
		D0			G7
	83	D0	Pull-up	BC_1	G7

	84		Enable	BC_2a

	85		Input/Output	BC_7
	86	D1	Pull-up	BC_1	H7
	87		Enable	BC_2a
	88		Input/Output	BC_7
		D2			H8
	89	D2	Pull-up	BC_1	H8

	90		Enable	BC_2a

	91		Input/Output	BC_7
	92	D3	Pull-up	BC_1	G8
	93		Enable	BC_2a
	94		Input/Output	BC_7
		D4			H9
	95	D4	Pull-up	BC_1	H9

	96		Enable	BC_2a

	97		Input/Output	BC_7
	98	D5	Pull-up	BC_1	E8
	99		Enable	BC_2a
	100		Input/Output	BC_7
		D6			F7
	101	D6	Pull-up	BC_1	F7

	102		Enable	BC_2a

	103		Input/Output	BC_7
	104	D7	Pull-up	BC_1	G6
	105		Enable	BC_2a
	106		Input/Output	BC_7
		D8			E8
	107	D8	Pull-up	BC_1	E8

	108		Enable	BC_2a

	109		Input/Output	BC_7
	110	D9	Pull-up	BC_1	E7
	111		Enable	BC_2a
	112		Input/Output	BC_7
		D10			E6
	113	D10	Pull-up	BC_1	E6

	114		Enable	BC_2a

	56852 Digital Signal Controller User Manual, Rev. 4
14-14					Freescale Semiconductor

-packaged product lines and part numbers indicated here currently are not	2010: MC13892
Commission, BGA	prior to September
order from the United States International Trade Freescale for import or sale in the United States
of an from
Because	available


								JTAG Boundary Scan Register (BSR)
	Table 14-5. BSR Contents for 56852 (Continued)

	Bit Number	Pin/Bit Name				Pin Type	BSR Cell	Pin Number


	115					Input/Output	BC_7
	116	D11				Pull-up	BC_1	D8
	117					Enable	BC_2a
	118					Input/Output	BC_7
		D12						D7
	119	D12				Pull-up	BC_1	D7

	120					Enable	BC_2a

	121					Input/Output	BC_7
	122	D13				Pull-up	BC_1	D9
	123					Enable	BC_2a
	124					Input/Output	BC_7
		D14						C8
	125	D14				Pull-up	BC_1	C8

	126					Enable	BC_2a

	127					Input/Output	BC_7
	128	D15				Pull-up	BC_1	A9
	129					Enable	BC_2a
	130					Input/Output	BC_7
								B8
	131		DE			Pull-up	BC_1	B8

	132					Enable	BC_2a

	133					Input/Output	BC_7
	134	TXD				Pull-up	BC_1	D4
	135					Enable	BC_2a
	136					Input/Output	BC_7
		RXD						B4
	137	RXD				Pull-up	BC_1	B4

	138					Enable	BC_2a

	139					Input/Output	BC_7
	140	MOSI				Pull-up	BC_1	C5
	141					Enable	BC_2a
	142					Input/Output	BC_7
		MISO						C4
	143	MISO				Pull-up	BC_1	C4

	144					Enable	BC_2a

	145					Input/Output	BC_7
	146			SS		Pull-up	BC_1	B3
	147					Enable	BC_2a
	148	SCK				Input/Output	BC_7

	149					Pull-up	BC_1	A3
	149					Pull-up	BC_1	A3

	150					Enable	BC_2a

	151	SRXD				Input/Output	BC_7
	152	SRXD				Pull-up	BC_1	A2
	152	(GPIOC1)				Pull-up	BC_1	A2
	153					Enable	BC_2a
	154	STXD				Input/Output	BC_7

	155					Pull-up	BC_1	B2
	155	(GPIOC0)				Pull-up	BC_1	B2
		(GPIOC0)
	156					Enable	BC_2a

					JTAG Port, Rev. 4
Freescale Semiconductor								14-15

-packaged product lines and part numbers indicated here currently are not	2010: MC13892
Commission, BGA	prior to September
order from the United States International Trade Freescale for import or sale in the United States
of an from
Because	available

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