mc9s12xf512 Freescale Semiconductor, Inc, mc9s12xf512 Datasheet - Page 1225

• Manufacturer Part Number: mc9s12xf512
• Description: S12x Microcontrollers 16-bit Automotive Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
Table A-27. Example 1a: Normal Expanded Mode Timing 50 MHz bus (EWAIT disabled)
1. Includes the following signals: ADDRx, UDS, LDS, and CSx.
No.
10
11
1
2
3
4
5
6
7
8
9
-
-
-
Frequency of internal bus
Internal cycle time
Frequency of external bus
External cycle time (selected by EXSTR)
Address
Pulse width, RE
Address valid to WE fall
Pulse width, WE
Read data setup time (if ITHRS = 0)
Read data setup time (if ITHRS = 1)
Read data hold time
Read enable access time
Write data valid to WE fall
Write data setup time
Write data hold time
(1)
valid to RE fall
MC9S12XF - Family Reference Manual, Rev.1.19
Characteristic
Symbol
PW
t
PW
t
t
t
WDWE
t
t
ADWE
t
t
ADRE
t
t
ACCR
DHW
t
DSW
cyce
DSR
DSR
DHR
cyc
f
f
o
i
WE
RE
C
D
D
D
D
D
D
D
D
D
D
D
-
-
-
-
V
DD35
Appendix A Electrical Characteristics
D.C.
D.C.
Min
20
40
28
18
19
23
23
4
4
0
4
5
6
=5.0V
50.0
25.0
Max
∞
∞
-
-
-
-
-
-
-
-
-
-
-
Unit
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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