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C167CS-4R

16-Bit CMOS Single-Chip Microcontrollers C166 Family

Infineon Technologies 

C167CS-4R

C167CS-L

Table 2

Pin Definitions and Functions (cont’d)

Symbol Pin Input Function

Num. Outp.

VDD 17, 46, –

56, 72,

82, 93,

109,

126,

136,

144

Digital Supply Voltage:

+5 V during normal operation and idle mode.

≥2.5 V during power down mode.

VSS 18, 45, –

55, 71,

83, 94,

110,

127,

139,

143

Digital Ground.

1) The CAN interface lines are assigned to ports P4 and P8 under software control. Within the CAN module

several assignments can be selected.

Note: The following behaviour differences must be observed when the bidirectional reset

is active:

• Bit BDRSTEN in register SYSCON cannot be changed after EINIT and is cleared

automatically after a reset.

• 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.

Data Sheet

13

V2.2, 2001-08

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