MC68332
REGISTER SUMMARY
USER’S MANUAL
D-5
Y = M111, where M is the logic state of the module mapping (MM) bit in the SIMCR.
D.2.1 SIMCR
— Module Configuration Register
$YFFA00
SIMCR controls system configuration. SIMCR can be read or written at any time, ex-
cept for the module mapping (MM) bit, which can only be written once.
EXOFF — External Clock Off
0 = The CLKOUT pin is driven from an internal clock source.
1 = The CLKOUT pin is placed in a high-impedance state.
FRZSW — Freeze Software Enable
0 = When FREEZE is asserted, the software watchdog and periodic interrupt timer
counters continue to run.
1 = When FREEZE is asserted, the software watchdog and periodic interrupt timer
counters are disabled, preventing interrupts during software debug.
FRZBM — Freeze Bus Monitor Enable
0 = When FREEZE is asserted, the bus monitor continues to operate.
1 = When FREEZE is asserted, the bus monitor is disabled.
SLVEN — Factory Test Mode Enabled
0 = IMB is not available to an external master.
1 = An external bus master has direct access to the IMB.
SHEN[1:0] — Show Cycle Enable
This field determines what the EBI does with the external bus during internal transfer
operations.
S
$YFFA5E
CHIP-SELECT OPTION 4 (CSOR4)
S
$YFFA60
CHIP-SELECT BASE 5 (CSBAR5)
S
$YFFA62
CHIP-SELECT OPTION 5 (CSOR5)
S
$YFFA64
CHIP-SELECT BASE 6 (CSBAR6)
S
$YFFA66
CHIP-SELECT OPTION 6 (CSOR6)
S
$YFFA68
CHIP-SELECT BASE 7 (CSBAR7)
S
$YFFA6A
CHIP-SELECT OPTION 7 (CSOR7)
S
$YFFA6C
CHIP-SELECT BASE 8 (CSBAR8)
S
$YFFA6E
CHIP-SELECT OPTION 8 (CSOR8)
S
$YFFA70
CHIP-SELECT BASE 9 (CSBAR9)
S
$YFFA72
CHIP-SELECT OPTION 9 (CSOR9)
S
$YFFA74
CHIP-SELECT BASE 10 (CSBAR10)
S
$YFFA76
CHIP-SELECT OPTION 10 (CSOR10)
$YFFA78
NOT USED
NOT USED
$YFFA7A
NOT USED
NOT USED
$YFFA7C
NOT USED
NOT USED
$YFFA7E
NOT USED
NOT USED
15
14
13
12
11
10
9
8
7
6
5
4
3
0
EXOFF
FRZSW FRZBM
0
SLVEN
0
SHEN
SUPV
MM
0
0
IARB
RESET:
0
0
0
0
DATA
11
0
0
0
1
1
0
0
1
1
1
1
Table D-2 SIM Address Map
Access
Address
15 8
7
0
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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