REGISTER SUMMARY
MC68332
D-30
USER’S MANUAL
D.5 Time Processor Unit
is the TPU address map.
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.5.1 TPUMCR
— TPU Module Configuration Register
$YFFE00
STOP — Stop Bit
0 = TPU operating normally
1 = Internal clocks shut down
TCR1P — Timer Count Register 1 Prescaler Control
TCR1 is clocked from the output of a prescaler. The prescaler's input is the internal
TPU system clock divided by either 4 or 32, depending on the value of the PSCK bit.
The prescaler divides this input by 1, 2, 4, or 8. Channels using TCR1 have the capa-
bility to resolve down to the TPU system clock divided by 4.
Table D-5 TPU Address Map
Access
Address
15 8
7 0
S
$YFFE00
TPU MODULE CONFIGURATION REGISTER (TPUMCR)
S
$YFFE02
TEST CONFIGURATION REGISTER (TCR)
S
$YFFE04
DEVELOPMENT SUPPORT CONTROL REGISTER (DSCR)
S
$YFFE06
DEVELOPMENT SUPPORT STATUS REGISTER (DSSR)
S
$YFFE08
TPU INTERRUPT CONFIGURATION REGISTER (TICR)
S
$YFFE0A
CHANNEL INTERRUPT ENABLE REGISTER (CIER)
S
$YFFE0C
CHANNEL FUNCTION SELECTION REGISTER 0 (CFSR0)
S
$YFFE0E
CHANNEL FUNCTION SELECTION REGISTER 1 (CFSR1)
S
$YFFE10
CHANNEL FUNCTION SELECTION REGISTER 2 (CFSR2)
S
$YFFE12
CHANNEL FUNCTION SELECTION REGISTER 3 (CFSR3)
S/U
$YFFE14
HOST SEQUENCE REGISTER 0 (HSQR0)
S/U
$YFFE16
HOST SEQUENCE REGISTER 1 (HSQR1)
S/U
$YFFE18
HOST SERVICE REQUEST REGISTER 0 (HSRR0)
S/U
$YFFE1A
HOST SERVICE REQUEST REGISTER 1 (HSRR1)
S
$YFFE1C
CHANNEL PRIORITY REGISTER 0 (CPR0)
S
$YFFE1E
CHANNEL PRIORITY REGISTER 1 (CPR1)
S
$YFFE20
CHANNEL INTERRUPT STATUS REGISTER (CISR)
S
$YFFE22
LINK REGISTER (LR)
S
$YFFE24
SERVICE GRANT LATCH REGISTER (SGLR)
S
$YFFE26
DECODED CHANNEL NUMBER REGISTER (DCNR)
15
14
13
12
11
10
9
8
7
6
5
4
3
0
STOP
TCR1P
TCR2P
EMU
T2CG
STF
SUPV
PSCK
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,
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