Renesas SH7641 User Manual
Page 13
Rev. 4.00 Sep. 14, 2005 Page xiii of l
Contents
Section 1 Overview................................................................................................1
1.1
Features.................................................................................................................................. 1
1.2
Block Diagram ....................................................................................................................... 7
1.3
Pin Assignments..................................................................................................................... 8
1.4
Pin functions .......................................................................................................................... 9
Section 2 CPU......................................................................................................25
2.1
Registers............................................................................................................................... 25
2.1.1
General Registers .................................................................................................... 29
2.1.2
Control Registers .................................................................................................... 31
2.1.3
System Registers..................................................................................................... 35
2.1.4
DSP Registers ......................................................................................................... 35
2.2
Data Formats........................................................................................................................ 42
2.2.1
Register Data Format (Non-DSP Type).................................................................. 42
2.2.2
DSP-Type Data Formats ......................................................................................... 42
2.2.3
Memory Data Formats ............................................................................................ 44
2.3
Features of CPU Core Instructions ...................................................................................... 44
2.4
Instruction Formats .............................................................................................................. 48
2.4.1
CPU Instruction Addressing Modes ....................................................................... 48
2.4.2
DSP Data Addressing ............................................................................................. 51
2.4.3
CPU Instruction Formats ........................................................................................ 58
2.4.4
DSP Instruction Formats......................................................................................... 61
2.5
Instruction Set ...................................................................................................................... 67
2.5.1
CPU Instruction Set ................................................................................................ 67
2.6
DSP Extended-Function Instructions ................................................................................... 81
2.6.1
Introduction............................................................................................................. 81
2.6.2
Added CPU System Control Instructions ............................................................... 82
2.6.3
Single and Double Data Transfer for DSP Data Instructions.................................. 84
2.6.4
DSP Operation Instruction Set................................................................................ 88
Section 3 DSP Operation .....................................................................................99
3.1
Data Operations of DSP Unit............................................................................................... 99
3.1.1
ALU Fixed-Point Operations .................................................................................. 99
3.1.2
ALU Integer Operations ....................................................................................... 104
3.1.3
ALU Logical Operations....................................................................................... 105
3.1.4
Fixed-Point Multiply Operation............................................................................ 107