Serial Module Ac Electrical Characteristics-Clock Timing; Ac Electrical Characteristics-Port Timing; Figure 8-12. Clock Timing; Figure 8-13. Port Timing - Motorola MC68306 User Manual

8.12 SERIAL MODULE AC ELECTRICAL CHARACTERISTICS—CLOCK
TIMING
(See Figure 8-12.)
Counter/Timer Clock High or Low Time
Clock Rise Time
Clock Fall Time
8.13 AC ELECTRICAL CHARACTERISTICS—PORT TIMING
(See Figure 8-13 and Note.)
Port Input Setup Time to LDS Asserted
Port Input Hold Time from LDS Negated
Port Output Valid from LDS Negated
NOTE: Test conditions for port outputs: C L = 50 pF, R L = 27 k to V CC .
LDS
IP0-IP2
OP0, OP1, OP3
8-16
Characteristic
X1/CLK
IP2 FOR C/T CLK
t
r

Figure 8-12. Clock Timing

Characteristic
t
PS
OLD DATA

Figure 8-13. Port Timing

MC68306 USER'S MANUAL
Symbol
t CTC
t t
CLK CLK
t t
CTC CTC
t
f
Symbol
t PS
t PH
t PD
t
PH
t
PD
Min Max
25 —
t r — 20
t f — 20
Min Max
0 —
0 —
— 60
NEW DATA
MOTOROLA
Unit
ns
ns
ns
Unit
ns
ns
ns