cop8sec520m National Semiconductor Corporation, cop8sec520m Datasheet - Page 34

• Manufacturer Part Number: cop8sec520m
• Description: 8-bit Cmos Based Microcontrollers With Memory Bytes Eeram
• Manufacturer: National Semiconductor Corporation

www.national.com
11.0 Memory Map
All RAM, ports and registers (except A and PC) are mapped into data memory address space.
Note: Reading memory locations 0070H–007FH (Segment 0) will return all
0000 to 006F
0070 to 007F
xx80 to xxBF
xxC7
xxC8
xxC9
xxCA
xxCB
xxCC
xxCD to xxCE
xxCF
xxD0
xxD1
xxD2
xxD3
xxD4
xxD5
xxD6
xxD7 to xxDF
xxE0
xxE1 to xxE5
xxE6
xxE7
xxE8
xxE9
xxEA
xxEB
xxEC
xxED
xxEE
xxEF
xxF0 to xxFB
xxFC
xxFD
xxFE
xxFF
0100–017F
S/ADD REG
Address
ones. Reading unused memory locations 0080H–00BFH (Segment 0)
will return undefined data. Reading memory locations from other Seg-
ments (i.e., Segment 2, Segment 3, … etc.) will return undefined data.
On-Chip RAM bytes (112 bytes)
Unused RAM Address Space (Reads
As All Ones)
Unused RAM Address Space (Reads
Undefined Data)
WATCHDOG Service Register
(Reg:WDSVR)
MIWU Edge Select Register
(Reg:WKEDG)
MIWU Enable Register (Reg:WKEN)
MIWU Pending Register
(Reg:WKPND)
Reserved
Reserved
Reserved
Idle Timer Window Length (Reg:ITMR)
Port L Data Register
Port L Configuration Register
Port L Input Pins (Read Only)
Reserved
Port G Data Register
Port G Configuration Register
Port G Input Pins (Read Only)
Reserved
EERAM Control Register E2CFG
Reserved for EE Control Registers
Timer T1 Autoload Register T1RB
Lower Byte
Timer T1 Autoload Register T1RB
Upper Byte
ICNTRL Register
MICROWIRE/PLUS Shift Register
Timer T1 Lower Byte
Timer T1 Upper Byte
Timer T1 Autoload Register T1RA
Lower Byte
Timer T1 Autoload Register T1RA
Upper Byte
CNTRL Control Register
PSW Register
On-Chip RAM Mapped as Registers
X Register
SP Register
B Register
S Register
On-Chip 128 EERAM Bytes
Contents
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