Motorola MC9S12GC-Family warranty Table C-3 SPI Slave Mode Timing Characteristics, Slave LSB OUT

Device User Guide — 9S12C128DGV1/D V01.05

SS
(INPUT)
SCK
(CPOL = 0)
(INPUT)
SCK
(CPOL = 1)
(INPUT)
MISO	see
(OUTPUT)	note
	7
MOSI
(INPUT)

	1
2
4	4
9
SLAVE	MSB OUT
5	6

MSB IN

12

12

11

BIT 6 . . . 1

BIT 6 . . . 1

3

13

13

8

SLAVE LSB OUT

LSB IN

NOTE: Not defined!

Figure C-4 SPI Slave Timing (CPHA=1)

In Table C-3the timing characteristics for slave mode are listed.

Table C-3 SPI Slave Mode Timing Characteristics

Num	C	Characteristic	Symbol					Unit
				Min	Typ	Max
1	D	SCK Frequency	fsck	DC	—	1/4		fbus
1	P	SCK Period	tsck	4	—	∞		tbus
2	D	Enable Lead Time	tlead	4	—	—		tbus
3	D	Enable Lag Time	tlag	4	—	—		tbus
4	D	Clock (SCK) High or Low Time	twsck	4	—	—		tbus
5	D	Data Setup Time (Inputs)	tsu	8	—	—		ns
6	D	Data Hold Time (Inputs)	thi	8	—	—		ns
7	D	Slave Access Time (time to data	ta	—	—	20		ns
		active)
8	D	Slave MISO Disable Time	tdis	—	—	22		ns
9	D	Data Valid after SCK Edge	tvsck	—	—	30 + tbus	1	ns
			tvss				1
10	D	Data Valid after SS fall		—	—	30 + tbus		ns
11	D	Data Hold Time (Outputs)	tho	20	—	—		ns
12	D	Rise and Fall Time Inputs	trfi	—	—	8		ns
13	D	Rise and Fall Time Outputs	trfo	—	—	8		ns
NOTES:

1. tbus added due to internal synchronization delay

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