Datasheet

Appendix A Electrical Characteristics
MC9S12E128 Data Sheet, Rev. 1.07
Freescale Semiconductor 585
A.5 SPI Characteristics
This section provides electrical parametrics and ratings for the SPI.
In Table A-16 the measurement conditions are listed.
A.5.1 Master Mode
In Figure A-4 the timing diagram for master mode with transmission format CPHA=0 is depicted.
Figure A-4. SPI Master Timing (CPHA = 0)
Table A-16. Measurement Conditions
Description Value Unit
Drive mode full drive mode —
Load capacitance C
LOAD,
on all outputs 50 pF
Thresholds for delay measurement points (20% / 80%) V
DDX
V
SCK
(OUTPUT)
SCK
(OUTPUT)
MISO
(INPUT)
MOSI
(OUTPUT)
SS
1
(OUTPUT)
1
9
5 6
MSB IN
2
BIT 6 . . . 1
LSB IN
MSB OUT
2
LSB OUT
BIT 6 . . . 1
11
4
4
2
10
(CPOL = 0)
(CPOL = 1)
3
13
13
1.If configured as an output.
2. LSBF = 0. For LSBF = 1, bit order is LSB, bit 1, ..., bit 6, MSB.
12
12