PSB21473FV13XT Infineon Technologies, PSB21473FV13XT Datasheet - Page 136

• Manufacturer Part Number: PSB21473FV13XT
• Manufacturer: Infineon Technologies

Specifications of PSB21473FV13XT

• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3.135V
• Operating Supply Voltage (max): 3.6V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 144
• Lead Free Status / RoHS Status: Compliant

Data Sheet
9.2.1
When a demultiplexed external bus is enabled, PORT1 is used as address bus.
Note that demultiplexed bus modes use PORT1 as a 16-bit port. Otherwise all 16 port
lines can be used for general purpose IO.
During external accesses in demultiplexed bus modes PORT1 outputs the 16-bit intra-
segment address as an alternate output function.
During external accesses in multiplexed bus modes, when no BUSCON register selects
a demultiplexed bus mode, PORT1 is not used and is available for general purpose IO.
•
Figure 9-5
For external memory access the direction of the port pin and the loading of data into the
port output latch are controlled by the bus controller hardware. The input of the port
output latch is disconnected from the internal bus and is switched to the line labeled
“Alternate Data Output” via a multiplexer. The alternate data is the 16-bit intrasegment
address. While an external bus mode is enabled, the user software should not write to
the port output latch, otherwise unpredictable results may occur.
9.3
The Port 2 of INCA-D is an 14-bit port. If Port 2 is used for general purpose I/O, the
direction of each line can be configured via the corresponding direction register DP2.
Each port line can be switched into push/pull or open drain mode via the open drain
control register ODP2.
An internal pull transistor is connected to the pad if register P2PUDEN = ’1’, no matter
whether the INCA-D is in normal operation mode or in power down mode. Either
pulldown transistor or pullup transistor will be selected via P2PUDSEL.
The output driver is disabled in power down mode unless P2PHEN = ’1’.
After reset, bits of P2PUDEN and P2PUDSEL are set to ’1’.
PORT1
Alternate Function
P1H
P1L
General Purpose
Input/Output
Alternate Functions of PORT1
PORT2
PORT1 I/O and Alternate Functions
P1H.7
P1H.6
P1H.5
P1H.4
P1H.3
P1H.2
P1H.1
P1H.0
P1L.7
P1L.6
P1L.5
P1L.4
P1L.3
P1L.2
P1L.1
P1L.0
Demux Bus
136
8/16-bit
a)
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
Parallel Ports
PSB 21473
2003-03-31
INCA-D