mc68hc908gt8 Freescale Semiconductor, Inc, mc68hc908gt8 Datasheet - Page 218

• Manufacturer Part Number: mc68hc908gt8
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Timebase Module (TBM)
17.4 Timebase Register Description
The timebase has one register, the timebase control register (TBCR), which is used to enable the
timebase interrupts and set the rate.
TBIF — Timebase Interrupt Flag
218
This read-only flag bit is set when the timebase counter has rolled over.
TBMCLK
1 = Timebase interrupt pending
0 = Timebase interrupt not pending
÷ 2
Address:
Reset:
Read:
Write:
÷ 2
÷ 2
MC68HC908GT16 • MC68HC908GT8 • MC68HC08GT16 Data Sheet, Rev. 5.0
÷ 2
÷ 2
$001C
TBIF
Bit 7
0
÷ 2
Figure 17-2. Timebase Control Register (TBCR)
÷ 2
÷ 8
= Unimplemented
Figure 17-1. Timebase Block Diagram
TBR2
÷ 2048
÷ 2
6
0
÷ 2
÷ 16
÷ 2
÷ 2
TBR1
5
0
÷ 8192
÷ 32
÷ 2
÷ 2
TBR0
÷ 2
4
0
÷ 64
÷ 2
÷ 32768
TACK
R
3
0
0
÷ 128
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
= Reserved
TBIE
2
0
SEL
TBON
1
0
TBON
Freescale Semiconductor
R
Bit 0
R
0
TBIF
TBMINT
TBIE