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General Description
MN102H Series Description
Program Counter
23
Address Registers
23
Data Registers
23
Multiplication/Division Register
15
Processor Status Word
15
Memory, SFRs, and I/O Ports
CPUM, EFCR, IAGR
SCCTRn, TRXBUFn, SCSTRn
PnOUT, PnIN, PnDIR
Note:
1. This allocation is a representative example. Actual memory, peripheral, SFR, and I/O port configuration depends
on the product.
Figure 1-4 Internal Registers, Memory, and Special Function Registers
MN102H75K/F75K/85K/F85K LSI User Manual
Internal registers, memory, and special function registers
0
PC
0
A0
A1
A2
A3
0
D0
D1
D2
D3
0
MDR
0
PSW
ROM
RAM
NMICR, xxICR
ANCTR, ANnBUF
TMn, BCn, BRn, ...
MEMMD
Panasonic
The program counter specifies the 24-bit address of the
program instruction being executed.
The four address registers specify the location of the data in
the memory. A3 is assigned as the stack pointer.
The four data registers handle all arithmetic and logic
operations. When byte-length (8-bit) or word-length (16-bit)
data is to be transferred to memory or to another register, an
instruction adds a zero or sign extension.
The dedicated multiplication/division register stores the high-
order 16 bits of the 32-bit product of multiplication operations.
In division operations, before execution it stores the high-order
16 bits of the 32-bit dividend, and after execution it stores the
16-bit remainder of the quotient.
Memory (ROM and RAM), special function registers for
controlling peripheral functions, and I/O ports can all be
assigned to the same address space.
1
Internal control registers
1
Interrupt control registers
1
Serial interface registers
1
A/D converter registers
1
Timer/counter registers
1
Memory control registers
1
I/O port registers
Panasonic Semiconductor Development Company
23
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