SAB80515 Datasheet, PDF (14/270 Pages) Siemens Semiconductor Group – 8-Bit Single-Chip Microcontroller Family

Fundamental Structure
2.1.3 Port Driver Circuitries
The port structures of the MYMOS and ACMOS versions are functionally compatible. For low power
consumption the pullup arrangement is realized differently in both versions.
Chapters 7.1.1.1, 7.1.1.2, 7.1.1.3 are dealing with the port structures in detail.
2.1.4 The A/D Converter Input Ports
The analog input ports (AN0 to AN7) of the SAB 80515/80535 can only be used as analog inputs
for the A/D converter.
The analog input ports (P6.0 to P6.7) of the SAB 80C515/80C535 can be used either as input
channels for the A/D converter or as digital inputs (see chapter 7.4)
Figure 2-2
Special Function Register PCON (Address 87H)
87H SMOD PDS IDLS
–
GF1 GF0 PDE IDLE PCON
7
6
5
4
3
2
1
0
These bits are available in the MYMOS version
Symbol
SMOD
Position Function
PCON.7 When set, the baud rate of the serial channel in mode 1, 2, 3 is doubled.
PDS
PCON.6 Power-down start bit. The instruction that sets the PDS flag bit is the last
instruction before entering the power-down mode.
IDLS
PCON.5 Idle start bit. The instruction that sets the IDLS flag bit is the last instruction
before entering the idle mode.
–
PCON.4 Reserved
GF1
PCON.3 General purpose flag
GF0
PCON.2 General purpose flag
PDE
PCON.1 Power-down enable bit. When set, starting of the power-down mode is
enabled.
IDLE
PCON.0 Idle mode enable bit. When set, starting of the idle mode is enabled.
Semiconductor Group
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