mc9s12hz256v2 Freescale Semiconductor, Inc, mc9s12hz256v2 Datasheet - Page 651

• Manufacturer Part Number: mc9s12hz256v2
• Description: Hcs12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

A.8
A.9
A timing diagram of the external multiplexed-bus is illustrated in
values shown on table
write and data read cycle are shown, only one or the other would occur on a particular bus cycle.
The expanded bus timings are highly dependent on the load conditions. The timing parameters shown
assume a balanced load across all outputs.
Freescale Semiconductor
Conditions are shown in
Num C
10
11
12
1
1
2
3
4
5
6
7
8
9
1
2
LCD Supply Voltage
LCD Output Impedance(BP[3:0],FP[31:0])
for outputs to charge to higher voltage level or to
GND
LCD Output Current (BP[3:0],FP[31:0])
for outputs to discharge to lower voltage level
except GND
Outputs measured one at a time, low impedance voltage source connected to the VLCD pin.
Outputs measured one at a time, low impedance voltage source connected to the VLCD pin.
P Operating Frequency
P SCK Period t
D Enable Lead Time
D Enable Lag Time
D Clock (SCK) High or Low Time
D Data Setup Time (Inputs)
D Data Hold Time (Inputs)
D Slave Access Time
D Slave MISO Disable Time
D Data Valid (after SCK Edge)
D Data Hold Time (Outputs)
D Rise Time Inputs and Outputs
D Fall Time Inputs and Outputs
1
LCD_32F4B
External Bus Timing
2
Characteristic
sck
Table A-4
Table
= 1./f
Table A-21. LCD_32F4B Driver Electrical Characteristics
op
Table A-20. SPI Slave Mode Timing Characteristics
Rating
A-22. All major bus signals are included in the diagram. While both a data
unless otherwise noted, CLOAD = 200pF on all outputs
MC9S12HZ256 Data Sheet, Rev. 2.05
Symbol
Z
VLCD
I
BP/FP
BP/FP
Symbol
t
t
t
wsck
t
lead
t
f
t
t
sck
lag
t
t
dis
t
op
su
ho
t
t
hi
a
v
r
f
-0.25
Min.
50
-
Figure A-10
t
cyc
Min
DC
25
25
4
1
1
0
30
Typ.
-
-
-
Appendix A Electrical Characteristics
with the actual timing
Typ
VDDX + 0.25
Max.
5.0
-
2048
Max
1 4
25
25
25
1
1
Unit
k
uA
V
Unit
f
t
t
t
t
t
bus
bus
ns
ns
ns
ns
ns
ns
ns
cyc
cyc
cyc
cyc
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