h8s2277 Renesas Electronics Corporation., h8s2277 Datasheet - Page 40

• Manufacturer Part Number: h8s2277
• Description: Hitachi Single-chip Microcomputer H8s/2276 Series
• Manufacturer: Renesas Electronics Corporation.

2.1.2
The differences between the H8S/2600 CPU and the H8S/2000 CPU are as shown below.
Instruction
MULXU
MULXS
18
High-speed operation
Two CPU operating modes
Note: * Not available in the LSI.
Power-down state
Register configuration
The MAC register is supported only by the H8S/2600 CPU.
Basic instructions
The four instructions MAC, CLRMAC, LDMAC, and STMAC are supported only by the
H8S/2600 CPU.
Number of execution states
The number of exection states of the MULXU and MULXS instructions.
All frequently-used instructions execute in one or two states
Maximum clock rate:
8/16/32-bit register-register add/subtract: 74 ns (at 13.5 MHz operation)
8
16 8-bit register-register divide:
16
32 16-bit register-register divide:
Normal mode*
Advanced mode
Transition to power-down state by SLEEP instruction
CPU clock speed selection
Differences between H8S/2600 CPU and H8S/2000 CPU
8-bit register-register multiply:
16-bit register-register multiply:
Mnemonic
MULXU.B Rs, Rd
MULXU.W Rs, ERd
MULXS.B Rs, Rd
MULXS.W Rs, ERd
13.5 MHz
888 ns (at 13.5 MHz operation)
888 ns (at 13.5 MHz operation)
1480 ns (at 13.5 MHz operation)
1480 ns (at 13.5 MHz operation)
H8S/2600
3
4
4
5
Internal Operation
H8S/2000
12
20
13
21