C517A_99 Datasheet, PDF (7/218 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

Introduction
C517A
1 Introduction
The C517A is a high-end member of the Siemens C500 family of 8-bit microcontrollers. lt is
functionally fully compatible with the SAB-80C517A/83C537A-5 microcontrollers.
The C517A basically operates with internal and/or external program memory. The C517A-L is
identical to the C517A-4R, except that it lacks the on-chip program memory. Therefore, in this
documentation the term C517A refers to all versions within this specification unless otherwise
noted.
Figure 1-1 shows the different functional units of the C517A and figure 1-2 shows the simplified
logic symbol of the C517A.
Oscillator
Watchdog
Watchdog
Timer
XRAM
2K x 8
RAM
256 x 8
Port 0
I/O
T0
Port 1
I/O
Compare
Power ^{CCU Timer}
T2
CPU
(8 Datapointer) ^MDU
Saving
T1
Port 2
I/O
Modes
10-Bit
A/D Converter
ROM
32k x 8
Port 3
I/O
8 Bit
USART
8 Bit
UART
Port 8 Port 7 Port 6 Port 5 Port 4
I/O
Analog/ Analog/ I/O I/O
Digital Digital
Input Input
MCA03317
Figure 1-1
C517A Functional Units
Semiconductor Group
1-1