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C511 Datasheet(PDF) 16 Page - Siemens Semiconductor Group

Part # C511
Description  8-Bit CMOS Microcontroller
PDF  43 Pages
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Manufacturer  SIEMENS [Siemens Semiconductor Group]
Direct Link  http://www.siemens.com/
Logo SIEMENS - Siemens Semiconductor Group

C511 Datasheet(HTML) 16 Page - Siemens Semiconductor Group

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Semiconductor Group
16
C511 / C513
CPU
The C511/C513 are efficient both as a controller and as an arithmetic processor. It has extensive
facilities for binary and BCD arithmetic and for bit-handling capabilities. Efficient use of program
memory results from an instruction set consisting of 44 % one-byte, 41 % two-byte, and 15 % three-
byte instructions. With a 12 MHz crystal, 58 % of the instructions execute in 1
µs.
Special Function Register PSW (Address D0H)
Reset Value : 00H
Bit
Function
CY
Carry Flag
AC
Auxiliary Carry Flag (for BCD operations)
F0
General Purpose Flag
RS1 RS0
00
01
10
11
Register Bank select control bits
Bank 0 selected, data address 00H-07H
Bank 1 selected, data address 08H-0FH
Bank 2 selected, data address 10H-17H
Bank 3 selected, data address 18H-1FH
OV
Overflow Flag
F1
General Purpose Flag
P
Parity Flag
Set/cleared by hardware each instruction cycle to indicate an odd/even number of
"one" bits in the accumulator, i.e. even parity.
CY
AC
F0
RS1
D0H
PSW
Bit No.
76543210
MSB
LSB
RS0
OV
F1
P



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