CPM Electrical Characteristics
SPISEL
(Input)
172
174
171
170
SPICLK
(CI=0)
(Input)
173
182
181
173
181
SPICLK
(CI=1)
(Input)
177
182
180
178
SPIMISO
(Output)
msb
msb
msb
Undef
175
Data
lsb
179
176
181 182
Data
SPIMOSI
(Input)
msb
lsb
Figure 62. SPI Slave (CP = 1) Timing Diagram
13.11I2C AC Electrical Specifications
2
Table 28 provides the I C (SCL < 100 KHz) timings.
Table 28. I2C Timing (SCL < 100 KHZ)
All
Frequencies
Num
Characteristic
Unit
Min
Max
200 SCL clock frequency (slave)
0
100
100
—
—
—
—
—
—
—
1
KHz
KHz
µs
200 SCL clock frequency (master) 1
1.5
4.7
4.7
4.0
4.7
4.0
0
202 Bus free time between transmissions
203 Low period of SCL
µs
204 High period of SCL
205 Start condition setup time
206 Start condition hold time
207 Data hold time
µs
µs
µs
µs
208 Data setup time
250
—
ns
209 SDL/SCL rise time
µs
MPC875/MPC870 Hardware Specifications, Rev. 3.0
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
65
Freescale Semiconductor