MC68HC912BD32 Datasheet, PDF (273/292 Pages) Freescale Semiconductor, Inc – Advance Information

ECLK
PORTS
ECLK
PORT A
Freescale Semiconductor, Inc.
Preliminary Electrical Characteristics
Table 77 Peripheral Port Timing
Characteristic
Frequency of operation (E-clock frequency)
E-clock period
Peripheral data setup time
MCU read of ports
t_PDSU = t_cyc/2 + 40
Peripheral data hold time
MCU read of ports
Delay time, peripheral data write
MCU write to ports except Port SBI
Delay time, peripheral data write
MCU write to Port SBI
Symbol
f_o
t_cyc
10.0 MHz
Unit
Min Max
dc 10.0 MHz
100 — ns
t_PDSU
90
— ns
t_PDH
0
— ns
t_PWD
—
40 ns
t_PWD
—
65 ns
MCU READ OF PORT
t_PDSU
t_PDH
Figure 64 Port Read Timing Diagram
MCU WRITE TO PORT
PREVIOUS PORT DATA
t_PWD
NEW DATA VALID
Figure 65 Port Write Timing Diagram
15-elec
Preliminary Electrical Characteristics
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MC68HC912BD32 Rev 1.0