Movfpe (Move Data From Peripheral With E Clock) - Renesas H8/300 Series Programming Manual

MOVFPE (MOVe data From Peripheral with E clock)

<Operation>
synchronization with the E clock
(EAs) → Rd
<Assembly-Language Format>
MOVFPE @aa:16, Rd
<Examples>
MOVFPE @H'FF81, R0H
<Operand Size>
Byte
<Description>
This instruction moves one byte of data from an absolute address location to a destination
register, and sets the condition code flags according to the data value. The transfer is
performed in synchronization with the E (enable) clock used by peripheral devices. The
transfer requires 9 to 16 states, so the execution time is variable. For further information on
basic timing, See the each Hardware Manuals .
This instruction should not be used with chips not having an E clock output pin or in single-
chip mode.
When the source operand is located in on-chip memory or the on-chip register field, the
MOVFPE instruction is identical in operation to MOV.B @aa:16, Rd.
Note that only 16-bit absolute addressing can be used, and word data cannot be transferred.
<Instruction Formats>
Addressing
mode
Absolute address
Mnem.
Operands
MOVFPE @aa:16, Rd
<Condition Code>
I
— — — —
I: Previous value remains unchanged.
H: Previous value remains unchanged.
N: Set to "1" if the data value is negative;
otherwise cleared to "0."
Z: Set to "1" if the data value is zero;
otherwise cleared to "0."
V: Cleared to "0."
C: Previous value remains unchanged
Instruction code
1st byte
2nd byte
6 A 4 rd
88
MOVFPE
H N Z
3rd byte 4th byte
abs.
V C
0 —
No. of
states
13-20