h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 54
h8s-2649
Manufacturer Part Number
h8s-2649
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2649.pdf
(766 pages)
- Current page: 54 of 766
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Section 2 CPU
• Two CPU operating modes
• Power-down state
Note: * Normal mode is not available in this LSI.
2.1.1
The differences between the H8S/2600 CPU and the H8S/2000 CPU are shown below.
• Register configuration
• Basic instructions
• The number of execution states of the MULXU and MULXS instructions;
In addition, there are differences in address space, CCR and EXR register functions, and power-
down modes, etc., depending on the model.
Rev. 2.00 Dec. 05, 2005 Page 16 of 724
REJ09B0200-0200
Instruction
MULXU
MULXS
16 ÷ 8-bit register-register divide: 12 states
16 × 16-bit register-register multiply: 4 states
32 ÷ 16-bit register-register divide: 20 states
Normal mode*
Advanced mode
Transition to power-down state by the SLEEP instruction
CPU clock speed selection
The MAC register is supported by the H8S/2600 CPU only.
The four instructions MAC, CLRMAC, LDMAC, and STMAC are supported by the H8S/2600
CPU only.
Differences between H8S/2600 CPU and H8S/2000 CPU
Mnemonic
MULXU.B Rs, Rd
MULXU.W Rs, ERd
MULXS.B Rs, Rd
MULXS.W Rs, ERd
3
4
4
5
Execution States
H8S/2600
H8S/2000
12
20
13
21
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