8XC196KB 8XC196KB16
EXPLANATION OF AC SYMBOLS
Each symbol is two pairs of letters prefixed by ‘‘T’’ for time The characters in a pair indicate a signal and its
condition respectively Symbols represent the time between the two signal condition points
Conditions
Signals
H - High
L - Low
V - Valid
X - No Longer Valid
Z - Floating
A - Address
B - BHE
BR - BREQ
C - CLKOUT
D - DATA IN
G - Buswidth
H - HOLD
HA - HLDA
L - ALE ADV
Q - DATA OUT
R - RD
W - WR WRH WRL
X - XTAL1
Y - READY
AC CHARACTERISTICS SERIAL PORT SHIFT REGISTER MODE
SERIAL PORT TIMING SHIFT REGISTER MODE (MODE 0)
Symbol
Parameter
Min
Max
Units
TXLXL Serial Port Clock Period (BRR t 8002H)
6 TOSC
ns
TXLXH Serial Port Clock Falling Edge to Rising Edge (BRR t 8002H) 4 TOSC b 50 4 TOSC a 50 ns
TXLXL Serial Port Clock Period (BRR e 8001H)
4 TOSC
ns
TXLXH Serial Port Clock Falling Edge to Rising Edge (BRR e 8001H) 2 TOSC b 50 2 TOSC a 50 ns
TQVXH Output Data Setup to Clock Rising Edge
2 TOSC b50
ns
TXHQX Output Data Hold after Clock Rising Edge
2 TOSC b50
ns
TXHQV Next Output Data Valid after Clock Rising Edge
2 TOSC a50 ns
TDVXH Input Data Setup to Clock Rising Edge
TOSC a50
ns
TXHDX Input Data Hold after Clock Rising Edge
0
ns
TXHQZ Last Clock Rising to Output Float
2 TOSC
ns
WAVEFORM SERIAL PORT SHIFT REGISTER MODE
SERIAL PORT WAVEFORM SHIFT REGISTER MODE (MODE 0)
270909 – 18
16