msm7630 Oki Semiconductor, msm7630 Datasheet - Page 30

• Manufacturer Part Number: msm7630
• Description: Universal Speech Processor
• Manufacturer: Oki Semiconductor

¡ Semiconductor
2.1 General Registers
The general registers are a set of 32 registers with 32-bit width. Of these registers %r0 to %r3 can be
used as general registers, but they do have special functions pre-assigned by the system. Registers
%r4 to %r31 can be used freely. Contents are undefined after reset.
FUNCTIONAL DESCRIPTION
CPU Core
1. Features
The SCP (Speech Control Processor) uses a CPU core with an Oki-original 32-bit RISC architecture.
2. Register Configuration
The CPU core registers are configured as 32 words for general registers, 7 words for privileged
registers, and 1 word for a special register.
bit 31
%r0 (link)
%r1 (pre-PC)
%r2 (pre-nPC)
%r3 (long-immed.)
General Registers
%r30
%r31
%r4
%r5
GR
Privileged Registers
Special Register
%PSR
%VBA
%prPSR
%IRR
%BPA
%PC
%nPC
%NOP
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