S912XHZ512F1VAG Datasheet, PDF (60/978 Pages) Freescale Semiconductor, Inc – Covers MC9S12XHZ384, MC9S12XHZ256

Chapter 2 Port Integration Module (S12XHZPIMV1)
Table 2-1. Detailed Signal Descriptions (Sheet 2 of 6)
Port
E
K
AD
Pin Name
Pin Function
and Priority
PE[7]
PE[6]
XCLKS
ECLKX2
FP[22]
GPIO
MODB
TAGHI
PE[5]
GPIO
MODA
RE
TAGLO
PE[4]
GPIO
ECLK
PE[3]
PE[2]
PE[1]
PE[0]
PK[7]
GPIO
EROMCTL
LSTRB
LDS
FP[21]
GPIO
R/W
WE
FP[20]
GPIO
IRQ
GPIO
XIRQ
GPIO
ROMCTL
EWAIT
PK[6:4]
PK[3:0]
PAD[7:0]
FP[23]
GPIO
ADDR[22:20]
mux ACC[2:0]
GPIO
ADDR[19:16]
mux IQSTAT[3:0]
BP[3:0]
GPIO
AN[7:0]
KWAD[7:0]
GPIO
I/O
Description
Pin Function
after Reset
I External clock selection input during RESET
Mode dependent
O Free-running clock output at Core Clock rate (ECLK x 2)
O LCD frontplane driver
I/O General-purpose I/O
I MODB input during RESET
I Instruction tagging low pin
Configurable for reduced input threshold
I/O General-purpose I/O
I MODA input during RESET
O Read enable signal
I Instruction tagging low pin
Configurable for reduced input threshold
I/O General-purpose I/O
O Free-running clock output at the Bus Clock rate or
programmable divided in normal modes
I/O General-purpose I/O
I EROMON bit control input during RESET
O Low strobe bar output
O Lower data strobe
O LCD frontplane driver
I/O General-purpose I/O
O Read/write output for external bus
O Write enable
O LCD frontplane driver
I/O General-purpose I/O
I Maskable level or falling edge-sensitive interrupt input
I/O General-purpose I/O
I Non-maskable level-sensitive interrupt input
I/O General-purpose I/O
I ROMON bit control input during RESET
Mode dependent
I
External Wait signal
Configurable for reduced input threshold
O LCD frontplane driver
I/O General-purpose I/O
O Extended external bus address output
(multiplexed with master access output)
I/O General-purpose I/O
O Extended external bus address output
(multiplexed with instruction pipe status bits)
O LCD backplane driver
I/O General-purpose I/O
I Analog-to-digital converter input channel
GPIO
I Keyboard wake-up interrupt
I/O General-purpose I/O
MC9S12XHZ512 Data Sheet, Rev. 1.06
60
Freescale Semiconductor