SAF-C167CR-16RM datasheet(8/67 Pages) SIEMENS

Part #	SAF-C167CR-16RM

Description	16-Bit CMOS Single-Chip Microcontrollers

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Manufacturer	SIEMENS [Siemens Semiconductor Group]

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8 / 67 page

20Dec96@09:25h Intermediate Version

Semiconductor Group

6

C167CR-16RM

P3.0 –

P3.13,

P3.15

65 – 70,

73 – 80,

81

65

66

67

68

69

70

73

74

75

76

77

78

79

80

81

I/O

I

O

I

O

I

I/O

O

I/O

O

I/O

O

Port 3 is a 15-bit (P3.14 is missing) 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:

P3.0

T0IN

CAPCOM Timer T0 Count Input

P3.1

T6OUT

GPT2 Timer T6 Toggle Latch Output

P3.2

CAPIN

GPT2 Register CAPREL Capture Input

P3.3

T3OUT

GPT1 Timer T3 Toggle Latch Output

P3.4

T3EUD

GPT1 Timer T3 Ext.Up/Down Ctrl.Input

P3.5

T4IN

GPT1 Timer T4 Input for

Count/Gate/Reload/Capture

P3.6

T3IN

GPT1 Timer T3 Count/Gate Input

P3.7

T2IN

GPT1 Timer T2 Input for

Count/Gate/Reload/Capture

P3.8

MRST

SSC Master-Rec./Slave-Transmit I/O

P3.9

MTSR

SSC Master-Transmit/Slave-Rec. O/I

P3.10

T

×D0

ASC0 Clock/Data Output (Asyn./Syn.)

P3.11

R

×D0

ASC0 Data Input (Asyn.) or I/O (Syn.)

P3.12

BHE

Ext. Memory High Byte Enable Signal,

WRH

Ext. Memory High Byte Write Strobe

P3.13

SCLK

SSC Master Clock Outp./Slave Cl. Inp.

P3.15

CLKOUT

System Clock Output (=CPU Clock)

P4.0 –

P4.7

85 - 92

85

...

89

90

91

92

I/O

O

...

O

I

O

Port 4 is an 8-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.

In case of an external bus configuration, Port 4 can be used to

output the segment address lines:

P4.0

A16

Least Significant Segment Addr. Line

...

P4.4

A20

Segment Address Line

P4.5

A21

Segment Address Line,

CAN_RxD CAN Receive Data Input

P4.6

A22

Segment Address Line,

CAN_TxD CAN Transmit Data Output

P4.7

A23

Most Significant Segment Addr. Line

RD

95

O

External Memory Read Strobe. RD is activated for every

external instruction or data read access.

Pin Definitions and Functions (cont’d)

Symbol

Number

Input (I)

Output (O)

Function

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SAF-C167CR-16RM Datasheet(PDF) 8 Page - Siemens Semiconductor Group

SAF-C167CR-16RM Datasheet(HTML) 8 Page - Siemens Semiconductor Group

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