Semiconductor
PIN DESCRIPTIONS (Cont.)
Type Signal Name I/O Direction
Bus
nBREQ
Input
control
signals nBACK
Output
ML670100
Description
This input is a bus request signal from an external device.
It represents a secondary function for I/O port PIO7[6].
This output is an acknowledgment signal to a bus request signal
from an external device. It represents a secondary function for
I/O port PIO7[7].
Interru- nEFIQ
Input
This input is an external fast interrupt request (FIQ). When
pts
accepted, the request is processed as an FIQ exception.
nEIR[7:0]
Input
This inputs are external interrupt requests. They represent
secondary functions for I/O port PIO3[7:0].
Timers TMIN[5:0]
Input
These pins function as capture trigger input pins for Flexible
Timer channels 5-0 in capture mode. They represent secondary
functions for I/O port PIO4[5:0].
TMOUT[5:0] Output
These pins function as output pins for Flexible Timer channels
5-0 in compare output or PWM mode. They represent
secondary functions for I/O port PIO4[5:0].
TMCLK[1:0] Input
These pins function as Flexible Timer channels 1 and 0 clock
input pins. They represent secondary functions for I/O port
PIO4[7:6].
Serial ASI_TXD
Output
This output is the transmit data for the Asynchronous Serial
ports
Interface. It represents a secondary function for I/O port
PIO5[7].
ASI_RXD
Input
This input is the receive data for the Asynchronous Serial
Interface. It represents a secondary function for I/O port
PIO5[6].
CSI0_TXD Output
This output is the transmit data for the Clock Synchronous
Serial Interface 0. It represents a secondary function for I/O
port PIO5[2].
CSI0_RXD Input
This input is the receive data for the Clock Synchronous Serial
Interface 0. It represents a secondary function for I/O port
PIO5[1].
CSI0_SCLK Bidirectional This pin accepts/provides clock signal for the Clock
Synchronous Serial Interface 0. It represents a secondary
function for I/O port PIO5[0].
CSI1_TXD Output
This output is the transmit data for the Clock Synchronous
Serial Interface 1. It represents a secondary function for I/O
port PIO5[5].
CSI1_RXD Input
This input is the receive data for the Clock Synchronous Serial
Interface 1. It represents a secondary function for I/O port
PIO5[4].
CSI1_SCLK Bidirectional This pin accepts/provides clock signal for the Clock
Synchronous Serial Interface 1. It represents a secondary
function for I/O port PIO5[3].
5 / 27
OKI [ OKI ELECTRONIC COMPONETS ]
