MC68HC908GR8CD Freescale Semiconductor, MC68HC908GR8CD Datasheet - Page 54

• Manufacturer Part Number: MC68HC908GR8CD
• Description: 8-bit Microcontrollers - MCU 8 Bit 8MHz
• Manufacturer: Freescale Semiconductor

Specifications of MC68HC908GR8CD

• Product Category: 8-bit Microcontrollers - MCU
• Rohs: yes
• Core: HC08
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 8 MHz
• Program Memory Size: 64 KB
• Data Ram Size: 384 B
• Operating Supply Voltage: 3 V to 5 V
• Package / Case: SOIC-28
• Mounting Style: SMD/SMT
• Data Rom Size: 64 KB
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 21
• Program Memory Type: Flash

Resets and Interrupts
4.3.3.1 Interrupt Status Register 1
IF6–IF1 — Interrupt Flags 6–1
Bit 1 and Bit 0 — Always read 0
4.3.3.2 Interrupt Status Register 2
IF14–IF8 — Interrupt Flags 14–7
Bit 0 — Always reads 0
4.3.3.3 Interrupt Status Register 3
IF16–IF15 — Interrupt Flags 16–15
Bits 7–2 — Always read 0
54
These flags indicate the presence of interrupt requests from the sources shown in
These flags indicate the presence of interrupt requests from the sources shown in
This flag indicates the presence of an interrupt request from the source shown in
1 = Interrupt request present
0 = No interrupt request present
1 = Interrupt request present
0 = No interrupt request present
1 = Interrupt request present
0 = No interrupt request present
Address:
Address:
Address:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Write:
Write:
Write:
R = Reserved
R = Reserved
R = Reserved
$FE04
$FE05
$FE06
Bit 7
Bit 7
IF14
Bit 7
IF6
R
R
R
0
0
0
0
Figure 4-6. Interrupt Status Register 1 (INT1)
Figure 4-7. Interrupt Status Register 2 (INT2)
Figure 4-8. Interrupt Status Register 3 (INT3)
MC68HC908GR8 • MC68HC908GR4 Data Sheet, Rev. 7
IF13
IF5
R
R
R
6
0
6
0
6
0
0
IF12
IF4
R
R
R
5
0
5
0
5
0
0
IF11
IF3
R
R
R
4
0
4
0
4
0
0
IF10
IF2
R
R
R
3
0
3
0
3
0
0
IF1
IF9
R
R
R
2
0
2
0
2
0
0
IF16
IF8
R
R
R
1
0
0
1
0
1
0
Freescale Semiconductor
Table
Table
Table
Bit 0
Bit 0
Bit 0
IF15
R
R
R
0
0
0
0
0
4-2.
4-2.
4-2.