pxb4219 Infineon Technologies Corporation, pxb4219 Datasheet - Page 31
pxb4219
Manufacturer Part Number
pxb4219
Description
Iwe8 Interworking Element For 8 E1/t1 Lines
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PXB4219.pdf
(290 pages)
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2.2.5
Table 5
Pin No.
G4, F2, F1,
G3, G2,
G1, H3, H2,
H1, J4, J3,
J2, J1, K2,
K3, K1
M4, N1,
N2, N3, P1,
P2, R1, P3,
R2, T1, P4,
R3, T2, U1,
T3, U2, V1,
T4
E2
E1
F3
Data Sheet
Microprocessor Interface
Symbol
MPDAT[15:0]
MPADR[17:0]
MPCS
MPWR/
MPRW
MPRD/
MPTS
Microprocessor Interface
Input (I)
Output (O)
I/O
PUA
I
I
I
I
31
Function
Microprocessor Data Bus
This bidirectional three-state bus provides
the general-purpose data path between the
IWE8 and an external master. The bus uses
little endian word order. MPDAT15 is the
MSB.
Microprocessor Address Bus
Provides the address of the current bus
cycle. Addresses are 16-bit aligned.
MPADR17 is the MSB of the bus
Microprocessor Chip Select
This signal is driven by the bus master to
indicate a read or write access.
Microprocessor Write Enable (Intel Bus
Mode)
This signal is driven by the bus master to
indicate a write data transfer
Read/Write Enable (Motorola Bus Mode)
This three-state signal is driven by the bus
master to indicate the direction of the bus’s
data transfer
Microprocessor Read Enable (Intel Bus
Mode)
This signal is driven by the bus master to
indicate a read data transfer
Microprocessor Transfer Start (Motorola
Bus Mode)
This signal is asserted by the bus master to
indicate the start of a bus cycle that
transfers data to or from the device
PXB4219 / PXB4220 / PXB4221
Pin Descriptions
2002-05-06
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