C167CS-L datasheet(12/81 Pages) INFINEON

12 / 81 page

C167CS-4R

C167CS-L

Data Sheet

V2.2, 2001-08

P3.0

P3.1

P3.2

P3.3

P3.4

P3.5

P3.6

P3.7

P3.8

P3.9

P3.10

P3.11

P3.12

P3.13

P3.15

I/O

Port 3 is a 15-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 3 outputs can be configured as push/

pull or open drain drivers. The input threshold of Port 3 is

selectable (TTL or special).

The following Port 3 pins also serve for alternate functions:

T0IN

CAPCOM1 Timer T0 Count Input

T6OUT

GPT2 Timer T6 Toggle Latch Output

CAPIN

GPT2 Register CAPREL Capture Input

T3OUT

GPT1 Timer T3 Toggle Latch Output

T3EUD

GPT1 Timer T3 External Up/Down Control Input

T4IN

GPT1 Timer T4 Count/Gate/Reload/Capture Inp

T3IN

GPT1 Timer T3 Count/Gate Input

T2IN

GPT1 Timer T2 Count/Gate/Reload/Capture Inp

MRST

SSC Master-Receive/Slave-Transmit Inp./Outp.

MTSR

SSC Master-Transmit/Slave-Receive Outp./Inp.

×D0

ASC0 Clock/Data Output (Async./Sync.)

×D0

ASC0 Data Input (Async.) or Inp./Outp. (Sync.)

BHE

External Memory High Byte Enable Signal,

WRH

External Memory High Byte Write Strobe

SCLK

SSC Master Clock Output / Slave Clock Input.

CLKOUT

System Clock Output (= CPU Clock)

FOUT

Programmable Frequency Output

N.C.

–

This pin is not connected in the C167CS.

No connection to the PCB is required.

Table 2

Pin Definitions and Functions (cont’d)

Symbol Pin

Num.

Input

Outp.

Function

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