Semiconductor
PIN DESCRIPTIONS (Cont.)
Signal
Name
Analog- VREF
to-digital
converter AI[7:0]
Debugg- TDI
ing
interface TDO
Type
I/O Direction Description
Input
Input
Input
Output
ML670100
nTRST
TMS
TCK
Input
Input
Input
DBGEN
Input
DBGRQ
Input
DBGACK
Output
I/O ports PIO8[7:0]
PIO7[7:0]
PIO6[7:0]
PIO5[7:0]
PIO4[7:0]
PIO3[7:0]
PIO2[7:0]
PIO1[7:0]
PIO0[7:0]
Bidirectional
Bidirectional
Bidirectional
Bidirectional
Bidirectional
Bidirectional
Bidirectional
Bidirectional
Bidirectional
This input is the reference voltage for the analog-to-digital
converter channels 7-0. Connect it to VDD.
These are analog signal input pins for analog-to-digital
converter channels 7-0.
This input is the serial data input for the debugging scan circuit.
It represents a secondary function for I/O port PIO8[7].
This output is the serial data output for the debugging scan
circuit. It represents a secondary function for I/O port
PIO8[6].
"L" level input to this pin resets the debugging scan circuit.
It represents a secondary function for I/O port PIO8[5].
This input selects the mode for the debugging scan circuit.
It represents a secondary function for I/O port PIO8[4].
This input is the serial clock input for the debugging scan
circuit. It represents a secondary function for I/O port
PIO8[3].
"H" level input to this pin enables the CPU's debugging
function. It represents a secondary function for I/O port
PIO8[2].
This input is a debugging request signal from an external
device. It represents a secondary function for I/O port
PIO8[1].
This output is an acknowledgment signal to a debugging
request signal from an external device. It represents a secondary
function for I/O port PIO8[0].
These form an 8-bit I/O port. I/O directions are specified at the
bit level.
These form an 8-bit I/O port. I/O directions are specified at the
bit level.
These form an 8-bit I/O port. I/O directions are specified at the
bit level.
These form an 8-bit I/O port. I/O directions are specified at the
bit level.
These form an 8-bit I/O port. I/O directions are specified at the
bit level.
These form an 8-bit I/O port. I/O directions are specified at the
bit level.
These form an 8-bit I/O port. I/O directions are specified at the
bit level.
These form an 8-bit I/O port. I/O directions are specified at the
bit level.
These form an 8-bit I/O port. I/O directions are specified at the
bit level.
6 / 27
OKI [ OKI ELECTRONIC COMPONETS ]
