PXB4219 Datasheet, PDF (32/290 Pages) Infineon Technologies AG – IWE8 Interworking Element for 8 E1/T1 Lines

Table 5
Pin No.
L4
M2
M3
PXB4219 / PXB4220 / PXB4221
Pin Descriptions
Microprocessor Interface (cont’d)
Symbol
MPRDY
MPTA
Input (I) Function
Output (O)
O
Microprocessor Ready (Intel Bus Mode)
Tri
This three-state output indicates that the
device has accepted date from the master
(write) or has driven the data bus with valid
data (read)
Microprocessor Transfer Acknowledge
(Motorola Bus Mode)
This three-state output indicates that the
device has accepted date from the master
(write) or has driven the data bus with valid
data (read)
MPIR1
O
PUB
Microprocessor Interrupt Request 1
Main interrupt pin indicating a special event
in the IWE8.
MPIR2
O
PUB
Microprocessor Interrupt Request 2
This signal is generated by timer set 2 to
indicate that a counter expired
Data Sheet
32
2002-05-06