sak-c164ci-l16m3v Infineon Technologies Corporation, sak-c164ci-l16m3v Datasheet - Page 10
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sak-c164ci-l16m3v
Manufacturer Part Number
sak-c164ci-l16m3v
Description
16-bit Single-chip Microcontroller
Manufacturer
Infineon Technologies Corporation
Datasheet
1.SAK-C164CI-L16M3V.pdf
(75 pages)
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Preliminary
Table 2
Symbol Pin
P4
P4.0
P4.1
P4.2
P4.3
P4.5
P4.6
RD
WR/
WRL
ALE
Data Sheet
No.
17
18
19
22
23
24
25
26
27
Pin Definitions and Functions (cont’d)
Input
Outp.
IO
O
O
O
O
O
O
O
O
O
I
O
O
O
O
O
Function
Port 4 is a 6-bit bidirectional I/O port. It is bit-wise
programmable for input or output via direction bits. For a pin
configured as input, the output driver is put into high-
impedance state. Port 4 outputs can be configured as push/
pull or open drain drivers. The input threshold of Port 4 is
selectable (TTL or special).
Port 4 can be used to output the segment address lines, the
optional chip select lines, and for serial interface lines:
A16
CS3
A17
CS2
A18
CS1
A19
CS0
A20
CAN1_RxD CAN 1 Receive Data Input
A21
CAN1_TxD CAN 1 Transmit Data Output
External Memory Read Strobe. RD is activated for every
external instruction or data read access.
External Memory Write Strobe. In WR-mode this pin is
activated for every external data write access. In WRL-mode
this pin is activated for low byte data write accesses on a
16-bit bus, and for every data write access on an 8-bit bus.
See WRCFG in register SYSCON for mode selection.
Address Latch Enable Output. Can be used for latching the
address into external memory or an address latch in the
multiplexed bus modes.
Least Significant Segment Address Line,
Chip Select 3 Output
Segment Address Line,
Chip Select 2 Output
Segment Address Line,
Chip Select 1 Output
Segment Address Line,
Chip Select 0 Output
Segment Address Line,
Most Significant Segment Address Line,
6
C164CI-L16M3V
Low Power
V1.0, 2003-01
1)
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