Information

Signal Descriptions
MPC8308 PowerQUICC II Pro Processor Reference Manual, Rev. 1
Freescale Semiconductor 2-11
SPICLK SPI clock SPI 1 I/O 19-1/19-6 — —
SPISEL SPI slave select SPI 1 I 19-1/19-6 — —
IRQ[0] External
interrupt 0
IPIC 1 I 8-1/8-5 MCP_IN —
IRQ[1] External
interrupt 1
IPIC 1 I/O 8-1/8-5 MCP_OUT 8-1/8-5
IRQ[2] External
interrupt 2
IPIC 1 I/O 8-1/8-5 CKSTOP_OUT —
IRQ[3] External
interrupt 3
IPIC 1 I 8-1/8-5 CKSTOP_IN, INTA —,
8-1/8-5
INTA Interrupt
request output
IPIC 1 O 8-1/8-5 CKSTOP_IN, IRQ3 —,
8-1/8-5
MCP_IN Machine check
interrupt input
IPIC 1 I — IRQ[0] 8-1/8-5
MCP_OUT Machine check
interrupt output
IPIC 1 O 8-1/8-5 IRQ[1] 8-1/8-5
TCK Test clock JTAG 1 I 20-1/20-2 — —
TDI Test data in JTAG 1 I 20-1/20-2 — —
TDO Test data out JTAG 1 O 20-1/20-2 — —
TMS Test mode
select
JTAG 1 I 20-1/20-2 — —
TRST Test reset JTAG 1 I 20-1/20-2 — —
TEST_MODE Internal test
signal
Note: "This pin
must always be
tied to VSS"
Te st 1 I — — —
PORESET Power on reset System
control
1 I 4-1/4-1 — —
HRESET Hard reset System
control
1 I/O 4-1/4-1 — —
SRESET Soft reset System
control
1 I/O 4-1/4-1 — —
SYS_CLK_IN Clock input Clocks 1 I 4-2/4-2 — —
RTC_PIT_CLOCK 32.768 KHz
clock input to
RTC
Clocks 1 I 15-1/15-4 — —
AVDD1 Core PLL
power supply
Misc 1 PWR — — —
Table 2-1. MPC8308 Signal Reference by Functional Block (continued)
Name Description
Functional
Block
No. of
Signals
I/O
Table/
Page
Alternate
Function(s)
Table/
Page