XC908AS60ACFU Motorola Semiconductor Products, XC908AS60ACFU Datasheet - Page 345

• Manufacturer Part Number: XC908AS60ACFU
• Description: MC68HC908AZ60A, MC68HC908AS60A Hcmos Microcontroller Unit Technical Data
• Manufacturer: Motorola Semiconductor Products

MC68HC908AZ60A — Rev 2.0
MOTOROLA
PIT Counter Modulo Register High
PIT Counter Modulo Register Low
PIT Status and Control Register
Register Name
PIT Counter Register High
PIT Counter Register Low
(PMODH)
(PMODL)
(PCNTH)
(PCNTL)
(PSC)
Reset:
Reset:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Read:
Read:
Write:
Write:
Write:
Write:
Write:
Figure 21-2. PIT I/O Register Summary
Bit 7
Bit 15
Bit 15
POF
Bit 7
Bit 7
Programmable Interrupt Timer (PIT)
0
0
0
0
1
1
Table 21-1. PIT I/O Register Address Summary
Register
Address
=Unimplemented
POIE
14
14
6
0
0
6
0
1
6
1
$004B
PSC
PSTOP
13
13
5
1
0
5
0
1
5
1
PCNTH
$004C
PRST
12
12
4
0
0
0
4
0
1
4
1
PCNTL
$004D
Programmable Interrupt Timer (PIT)
11
11
3
0
0
0
3
0
1
3
1
PMODH
$004E
PPS2
10
10
2
0
0
2
0
1
2
1
Functional Description
PMODL
$004F
PPS1
1
0
9
0
1
0
9
1
1
1
Technical Data
Bit 0
PPS0
Bit 8
Bit 0
Bit 8
Bit 0
0
0
0
1
1
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