HD64F3437TF16 Datasheet, PDF (63/752 Pages) Hitachi Semiconductor – 12 V must not be applied to the S-mask model (single-power-supply specification), as this may permanently damage the device.

2.5.1 Data Transfer Instructions
Table 2.4 describes the data transfer instructions. Figure 2.5 shows their object code formats.
Table 2.4 Data Transfer Instructions
Instruction
MOV
Size*
B/W
MOVTPE
B
MOVFPE
B
PUSH
W
POP
W
Note: * Size: Operand size
B: Byte
W: Word
Function
(EAs) → Rd, Rs → (EAd)
Moves data between two general registers or between a general
register and memory, or moves immediate data to a general register.
The Rn, @Rn, @(d:16, Rn), @aa:16, #xx:8 or #xx:16, @–Rn, and
@Rn+ addressing modes are available for byte or word data. The
@aa:8 addressing mode is available for byte data only.
The @–R7 and @R7+ modes require word operands. Do not specify
byte size for these two modes.
Not supported by the H8/3437 Series.
Not supported by the H8/3437 Series.
Rn → @–SP
Pushes a 16-bit general register onto the stack. Equivalent to
MOV.W Rn, @–SP.
@SP+ → Rn
Pops a 16-bit general register from the stack. Equivalent to MOV.W
@SP+, Rn.
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