C515A_9708 Datasheet, PDF (32/182 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

Memory Organization
C515A
Table 3-1
Special Function Registers - Functional Blocks (cont’d)
Block Symbol Name
Address Contents after
Reset
Ports
P0
P1
P2
P3
P4
P5
P6
Port 0
Port 1
Port 2
Port 3
Port 4
Port 5
Port 6, Analog/Digital Input
80H ¹⁾
90H ¹⁾
A0H ¹⁾
B0H ¹
E8H ¹⁾
F8H ¹⁾
DBH
FFH
FFH
FFH
FFH
FFH
FFH
–
XRAM
XPAGE
Page Address Register for Extended
On-Chip RAM
91H
00H
SYSCON ²⁾ System/XRAM Control Register
B1H
XX10 XX01B ³⁾
Serial
Channel
ADCON0 ²⁾ A/D Converter Control Register
PCON ²⁾ Power Control Register
SBUF
Serial Channel Buffer Register
SCON ²⁾ Serial Channel Control Register
SRELL Serial Channel Reload Register, Low Byte
SRELH Serial Channel Reload Register, High Byte
D8H ¹
87H
99H
98H ¹⁾
AAH
BAH
00H
00H
XXH ³⁾
00H
D9H
XXXX XX11B ³⁾
Watchdog IEN0 ²⁾
IEN1 ²⁾
IP0 ²⁾⁾
IP1 ²⁾
WDTREL
Interrupt Enable Register 0
Interrupt Enable Register 1
Interrupt Priority Register 0
Interrupt Priority Register 1
Watchdog Timer Reload Register
A8H¹⁾
B8H ¹⁾
A9H
B9H
86H
00H
00H
00H
XX00 0000B ³⁾
00H
Power
Saving
Modes
PCON ²⁾ Power Control Register
PCON1 ⁴⁾ Power Control Register 1
87H
00H
88H
0XXX XXXXB ³⁾
1) _{Bit-addressable special function registers}
2) _{This special function register is listed repeatedly since some bits of it also belong to other functional blocks.}
3) _{“X” means that the value is undefined and the location is reserved.}
4) _{SFR is located in the mapped SFR area. For accessing this SFR, bit RMAP in SFR SYSCON must be set.}
Semiconductor Group
3-13
1997-08-01