MC68HC908GP32CFB Freescale Semiconductor, MC68HC908GP32CFB Datasheet - Page 339

• Manufacturer Part Number: MC68HC908GP32CFB
• Description: IC MCU 8MHZ 32K FLASH 44-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GP32CFB

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 33
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-QFP
• For Use With: M68EVB908GP32 - BOARD EVALUATION FOR HC908GP32
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

21.5 Timebase Register Description
MC68HC908GP32
MOTOROLA
•
MC68HC08GP32
Address:
The timebase has one register, the TBCR, which is used to enable the
timebase interrupts and set the rate.
TBIF — Timebase Interrupt Flag
TBR2:TBR0 — Timebase Rate Selection
Reset:
Read:
Write:
TBR2
This read-only flag bit is set when the timebase counter has rolled
over.
These read/write bits are used to select the rate of timebase interrupts
as shown in
Table 21-1. Timebase Rate Selection for OSC1 = 32.768-kHz
0
0
0
0
1
1
1
1
1 = Timebase interrupt pending
0 = Timebase interrupt not pending
—
$001C
TBIF
Bit 7
Figure 21-2. Timebase Control Register (TBCR)
Rev. 6
0
TBR1
Timebase Module (TBM)
0
0
1
1
0
0
1
1
= Unimplemented
Table
TBR2
6
0
TBR0
21-1.
0
1
0
1
0
1
0
1
TBR1
5
0
Divider
32768
8192
2048
TBR0
128
64
32
16
8
4
0
TACK
R
3
0
0
Timebase Interrupt Rate
1024
2048
4096
Timebase Register Description
256
512
Hz
16
1
4
= Reserved
TBIE
Timebase Module (TBM)
2
0
TBON
1
0
Technical Data
~0.24
~ 3.9
1000
62.5
~0.5
250
ms
~2
~1
Bit 0
R
0
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