EM78P417N/418N/419N
8-Bit Microprocessor with OTP ROM
Bit 1 & Bit 0 (RCM1 & RCM0): RC mode selection bits
RCM 1
RCM 0
Frequency(MHz)
1
1
0
0
1
0
1
0
4
8
1
455kHz
6.13.3 Customer ID Register (Word 2)
WORD 2
Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
X
X
X
X
X
X
X
X
X
X
X
X
X
Bit 12 ~ 0 : Customer’s ID code
6.14 Instruction Set
Each instruction in the instruction set is a 13-bit word divided into an OP code and one
or more operands. Normally, all instructions are executed within one single instruction
cycle (one instruction consists of 2 oscillator time periods), unless the program counter
is changed by instructions "MOV R2,A," "ADD R2,A," or by instructions of arithmetic or
logic operation on R2 (e.g., "SUB R2,A," "BS(C) R2,6," "CLR R2," etc.). In this case,
these instructions need one or two instruction cycles as determined by Code Option
Register CYES bit.
In addition, the instruction set has the following features:
1. Every bit of any register can be set, cleared, or tested directly.
2. The I/O registers can be regarded as general registers. That is, the same
instruction can operate on I/O registers.
The symbol "R" represents a register designator that specifies which one of the
registers (including operational registers and general-purpose registers) is to be
utilized by the instruction. The symbol "b" represents a bit field designator that selects
the value for the bit located in the register "R" that is affected by the operation. The
symbol "k" represents an 8 or 10-bit constant or literal value.
64 •
Product Specification (V1.0) 06.23.2005
(This specification is subject to change without further notice)
ELAN [ ELAN MICROELECTRONICS CORP ]
