SAB-C161K-L16M SIEMENS [Siemens Semiconductor Group], SAB-C161K-L16M Datasheet - Page 7

• Manufacturer Part Number: SAB-C161K-L16M
• Description: 16-Bit CMOS Single-Chip Microcontroller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Pin Definitions and Functions (cont’d)
Symbol
RSTOUT 66
NMI
P6.0 –
P6.3
P2.9 –
P2.15
P5.14 –
P5.15
Semiconductor Group
Pin
Number
67
68 -
71
68
69
70
71
72 -
78
72
...
75
76
...
78
79
80
79
80
Input
Output
O
I
I/O
I/O
O
O
O
O
I/O
I/O
I
...
I
I
...
I
I
I
I
I
Function
Internal Reset Indication Output. This pin is set to a low level when
the part is executing either a hardware-, a software- or a watchdog
timer reset. RSTOUT remains low until the EINIT (end of
initialization) instruction is executed.
Non-Maskable Interrupt Input. A high to low transition at this pin
causes the CPU to vector to the NMI trap routine.
When the PWRDN (power down) instruction is executed, the NMI
pin must be low in order to force the C161 to go into power down
mode. If NMI is high, when PWRDN is executed, the part will
continue to run in normal mode.
Power Down is only available on the C161K and the C161O.
If not used, pin NMI should be pulled high externally.
Port 6 is a 4-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
P6.1
P6.2
P6.3
The C161V does not provide CS outputs.
Port 2 is a 7-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:
P2.9
...
P2.12
P2.13
...
P2.15
These ext. interrupts are only available on the C161O.
Port 5
characteristics.
The pins of Port 5 also serve as timer inputs:
P5.14
P5.15
These functions are only available on the C161K and the C161O.
1996 Intermediate Version
is
CS0
CS1
CS2
CS3
EX1IN
...
EX4IN
EX5IN
...
EX7IN
T4EUD
T2EUD
a
6
2-bit
GPT1 Timer T4 Ext.Up/Down Ctrl.Input
GPT1 Timer T2 Ext.Up/Down Ctrl.Input
Chip Select 0 Output (C161O, C161K)
Chip Select 1 Output (C161O, C161K)
Chip Select 2 Output (C161O)
Chip Select 3 Output (C161O)
Fast External Interrupt 1 Input
...
Fast External Interrupt 4 Input
Fast External Interrupt 5 Input
...
Fast External Interrupt 7 Input
input-only
port
with
Schmitt-Trigger
C161