ST10R272L STMicroelectronics, ST10R272L Datasheet - Page 76

• Manufacturer Part Number: ST10R272L
• Description: 16-BIT Romless MCU WITH MAC UNIT
• Manufacturer: STMicroelectronics

Specifications of ST10R272L

• Cpu Frequency: 0 to 50 MHz
• Power: 3.3 Volt +/-0.3V

ST10R272L - ELECTRICAL CHARACTERISTICS
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The transition of shift and latch edge of SSPCLK is programmable. This figure uses the
falling edge as shift edge (drawn bold).
The bit timing is repeated for all bits to be transmitted or received.
The active level of the chip enable lines is programmable. This figure uses an active low
CE (drawn bold). At the end of a transmission or reception the CE signal is disabled in sin-
gle transfer mode. In continuous transfer mode it remains active.
SSPDAT
SSPCLK
SSPDAT
SSPCEx
SSPCLK
SSPCEx
1)
1)
t
205
t
last Wr. Bit
207
t
200
t
209
1st Bit
t
210
Figure 29 SSP write timing
Figure 30 SSP read timing
t
t
202
207
t
203
2nd Bit
t
201
1st.In Bit
t
211
t
204
t
208
2)
2)
Lst.In Bit
t
207
t
212
Last Bit
t
206
t
209
t
206
3)
3)