MC68HC908GR8CFA Freescale Semiconductor, MC68HC908GR8CFA Datasheet - Page 143

• Manufacturer Part Number: MC68HC908GR8CFA
• Description: IC MCU FLSH 8BIT8MHZ 7.5K32-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GR8CFA

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 21
• Program Memory Size: 7.5KB (7.5K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 6x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

10.4.5 Condition code register (CCR)
MC68HC908GR8 — Rev 4.0
MOTOROLA
CCR
PC
Reset:
Read:
Write:
Reset:
Read:
Write:
During reset, the program counter is loaded with the reset vector
address located at $FFFE and $FFFF. The vector address is the
address of the first instruction to be executed after exiting the reset state.
The 8-bit condition code register contains the interrupt mask and five
flags that indicate the results of the instruction just executed. Bits 6 and
5 are set permanently to ‘1’. The following paragraphs describe the
functions of the condition code register.
V — Overflow flag
H — Half-carry flag
The CPU sets the overflow flag when a two's complement overflow
occurs. The signed branch instructions BGT, BGE, BLE, and BLT use
the overflow flag.
Freescale Semiconductor, Inc.
X = Indeterminate
For More Information On This Product,
Bit
15
1 = Overflow
0 = No overflow
Bit 7
V
X
Figure 10-6. Condition code register (CCR)
14
Central Processing Unit (CPU)
Figure 10-5. Program counter (PC)
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13
6
1
1
12
Loaded with vector from $FFFE and $FFFF
11
5
1
1
10
9
H
X
4
8
7
3
1
I
6
Central Processing Unit (CPU)
5
N
X
2
4
3
X
1
Z
Technical Data
CPU registers
2
1
Bit 0
C
X
Bit
143
0