peb22504 Infineon Technologies Corporation, peb22504 Datasheet - Page 20

• Manufacturer Part Number: peb22504
• Description: Quad Line Interface Unit For E1dt1dj1 Quadliu
• Manufacturer: Infineon Technologies Corporation

Table 1
Pin No.
38
91
Data Sheet
Control Pin Functions (cont’d)
Signal
WR
RW
INT
Input (I)
Output (O)
Supply (S)
I + PU
I + PU
O/oD
20
Function
WRite Enable/Read-Write Select
(Intel bus mode, MODE=low)
This signal indicates a write operation.
When CS is active the device loads an
internal register with data provided via the
Data Bus.
Read/Write Enable
(Motorola bus mode, MODE=high)
This signal distinguishes between read and
write operations.
INTerrupt Request
General interrupt request output for all
interrupt sources. These interrupt sources
can be masked individually via register
IMR0/1. Interrupt status is reported via
register CIS (Channel Interrupt Status) and
ISR0/1.
Output characteristics of this pin can be
defined to be push-pull (active high or
active low) or open-drain (active low) by
using register IPC.
Pin Descriptions
QuadLIU V1.1
PEB 22504
2001-02