SAFC161RI datasheet(10/60 Pages) SIEMENS

10 / 60 page

Semiconductor Group

1998-05-01

C161RI

1) The following behavior differences must be observed when the bidirectional reset is active:

Bit BDRSTEN in register SYSCON cannot be changed after EINIT.

After a reset bit BDRSTEN is cleared.

The reset indication flags always indicate a long hardware reset.

The PORT0 configuration is treated like on a hardware reset. Especially the bootstrap loader

may be activated when P0L.4 is low.

Pin RSTIN may only be connected to external reset devices with an open drain output driver.

A short hardware reset is extended to the duration of the internal reset sequence.

P6.0 –

P6.7

79 –

...

81 –

...

I/O

...

I/O

Port 6 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.

The Port 6 pins also serve for alternate functions:

P6.0

CS0

Chip Select 0 Output

...

P6.4

CS4

Chip Select 4 Output

P6.5

SDA1

I2C Bus Data Line 1

P6.6

SCL1

I2C Bus Clock Line 1

P6.7

SDA2

I2C Bus Data Line 2

Note:

Pins P6.5-P6.7 are open drain outputs only.

P2.8 –

P2.15

87 –

...

89 –

...

I/O

...

Port 2 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.

The following Port 2 pins also serve for alternate functions:

P2.8

EX0IN

Fast External Interrupt 0 Input

...

P2.15

EX7IN

Fast External Interrupt 7 Input

AREF

Reference voltage for the A/D converter.

AGND

Reference ground for the A/D converter.

6, 23,

37, 47,

65, 75

8, 25,

39, 49,

67, 77

Digital Supply Voltage:

+ 5 V during normal operation and idle mode.

≥ 2.5 V during power down mode

3, 22,

36, 46,

64, 74

5, 24,

38, 48,

66, 76

Digital Ground.

Pin Definitions and Functions (cont’d)

Symbol

Pin No.

TQFP

Pin No.

MQFP

Input

Outp

Function

SAFC161RI Datasheet(PDF) 10 Page - Siemens Semiconductor Group

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