IBM25PPC440GP IBM Microelectronics, IBM25PPC440GP Datasheet - Page 47

• Manufacturer Part Number: IBM25PPC440GP
• Description: PowerPC 440GP Embedded Processor
• Manufacturer: IBM Microelectronics

PowerPC 440GP Embedded Processor Data Sheet
Signal Functional Description
Notes:
1. Receiver input has hysteresis
2. Must pull up (recommended value is 3kΩ to 3.3V, 10kΩ to 5V)
3. Must pull down (recommended value is 1kΩ)
4. If not used, must pull up (recommended value is 3kΩ to 3.3V)
5. If not used, must pull down (recommended value is 1kΩ)
6. Strapping input during reset; pull-up or pull-down required
5/13/04
Interrupts Interface
IRQ00:10
IRQ11:12
JTAG Interface
TCK
TDI
TDO
TMS
TRST
System Interface
SysClk
SysErr
SysReset
TmrClk
Halt
GPIO00:31
TestEn
RcvrInh
RefVEn
DrvrInh1:2
Signal Name
External interrupt Requests 0 through 10.
External interrupt Requests 11 through 12.
Test Clock.
Test Data In.
Test Data Out.
Test Mode Select.
Test Reset.
Main system clock input.
Set to 1 when a machine check is generated.
Main system reset. External logic can drive this
bidirectional pin low (minimum of 16 cycles) to initiate a
system reset. A system reset can also be initiated by
software. Implemented as an open-drain output (two
states; 0 or open circuit).
Processor timer external input clock.
Halt from external debugger.
General purpose I/O 0 through 10. To access these
functions, software must set DCR register bits.
Test Enable.
Receiver Inhibit. Active only when TestEn is active.
Reference Voltage Enable. Used for wafer testing. Do
not connect for normal operation.
Driver Inhibit. Used for test purposes only. Tie up for
normal operation
(Part 6 of 7)
Description
Clock
I/O
I/O
I/O
O
O
I
I
I
I
I
I
I
I
I
I
I
I
3.3V CMOS
3.3V CMOS
3.3V CMOS
3.3V CMOS
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
3.3V LVTTL
1.8V CMOS
w/pull-down
3.3V LVTTL
1.8V CMOS
w/pull-down
3.3V LVTTL
5V tolerant
5V tolerant
5V tolerant
5V tolerant
5V tolerant
5V tolerant
5V tolerant
5V tolerant
5V tolerant
3.3V PCI
w/pull-up
w/pull-up
w/pull-up
w/pull-up
Type
Page 47 of 72
Notes
1, 5
1, 2
1, 4
1
1
5
3
2
4