XC908AS60ACFU Motorola Semiconductor Products, XC908AS60ACFU Datasheet - Page 331

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

20.9 I/O Registers
20.9.1 TIMB Status and Control Register
MC68HC908AZ60A — Rev 2.0
MOTOROLA
Address:
These I/O registers control and monitor TIMB operation:
The TIMB status and control register:
TOF — TIMB Overflow Flag Bit
Reset:
Read:
Write:
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This read/write flag is set when the TIMB counter reaches the modulo
value programmed in the TIMB counter modulo registers. Clear TOF
by reading the TIMB status and control register when TOF is set and
then writing a logic 0 to TOF. If another TIMB overflow occurs before
Figure 20-4. TIMB Status and Control Register (TBSC)
TIMB status and control register (TBSC)
TIMB control registers (TBCNTH–TBCNTL)
TIMB counter modulo registers (TBMODH–TBMODL)
TIMB channel status and control registers (TBSC0 and TBSC1)
TIMB channel registers (TBCH0H–TBCH0L, TBCH1H–TBCH1L)
Enables TIMB overflow interrupts
Flags TIMB overflows
Stops the TIMB counter
Resets the TIMB counter
Prescales the TIMB counter clock
$0040
Bit 7
TOF
R
0
0
Timer Interface Module B (TIMB)
= Reserved
TOIE
6
0
TSTOP
5
1
TRST
4
0
0
R
3
0
0
Timer Interface Module B (TIMB)
PS2
2
0
PS1
1
0
Technical Data
I/O Registers
Bit 0
PS0
0
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