REGISTER SUMMARY
MC68332
D-18
USER’S MANUAL
D.4 Queued Serial Module
The column labeled “Access” indicates the privi-
lege level at which the CPU must be operating to access the register. A designation of
“S” indicates that supervisor access is required: a designation of “S/U” indicates that
the register can be programmed to the desired privilege level.
Y = M111, where M is the logic state of the module mapping (MM) bit in the SIMCR.
D.4.1 QSMCR
— QSM Configuration Register
$YFFC00
QSMCR bits enable stop and freeze modes, and determine the arbitration priority of
QSM interrupt requests.
STOP — Stop Enable
0 = Normal QSM clock operation
1 = QSM clock operation stopped
When STOP is set, the QSM enters low-power stop mode. System clock input to the
module is disabled. While STOP is asserted, only QSMCR reads are guaranteed to be
valid, but writes to QSPI RAM or any register are guaranteed valid. STOP is set during
Table D-4 QSM Address Map
Access
Address
15 8
7 0
S
$YFFC00
QSM MODULE CONFIGURATION (QSMCR)
S
$YFFC02
QSM TEST (QTEST)
S
$YFFC04
QSM INTERRUPT LEVEL (QILR)
QSM INTERRUPT VECTOR (QIVR)
S/U
$YFFC06
NOT USED
S/U
$YFFC08
SCI CONTROL 0 (SCCR0)
S/U
$YFFC0A
SCI CONTROL 1 (SCCR1)
S/U
$YFFC0C
SCI STATUS (SCSR)
S/U
$YFFC0E
SCI DATA (SCDR)
S/U
$YFFC10
NOT USED
S/U
$YFFC12
NOT USED
S/U
$YFFC14
NOT USED
PQS DATA (PORTQS)
S/U
$YFFC16
PQS PIN ASSIGNMENT (PQSPAR)
PQS DATA DIRECTION (DDRQS)
S/U
$YFFC18
SPI CONTROL 0 (SPCR0)
S/U
$YFFC1A
SPI CONTROL 1 (SPCR1)
S/U
$YFFC1C
SPI CONTROL 2 (SPCR2)
S/U
$YFFC1E
SPI CONTROL 3 (SPCR3)
SPI STATUS (SPSR)
S/U
$YFFC20–
$YFFCFF
NOT USED
S/U
QUEUE RAM
$YFFD00–
$YFFD1F
RECEIVE RAM (RR[0:F])
S/U
QUEUE RAM
$YFFD20–
$YFFD3F
TRANSMIT RAM (TR[0:F])
S/U
QUEUE RAM
$YFFD40–
$YFFD4F
COMMAND RAM (CR[0:F])
15
14
13
12
11
10
9
8
7
6
5
4
3
0
STOP
FRZ1
FRZ0
0
0
0
0
0
SUPV
0
0
0
IARB
RESET:
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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