UPD77115A データシートの表示（PDF） - NEC => Renesas Technology

部品番号

コンポーネント説明

メーカー

UPD77115A

16-BIT FIXED-POINT DIGITAL SIGNAL PROCESSOR

NEC => Renesas Technology 

µPD77115, 77115A

6.2.2 Internal peripherals

The internal peripherals are mapped to the internal data memory space.

X/Y Memory Address Register Name

Function

Peripheral Name

0x3800

SDT/ASDT

Serial data register

ASIO

0x3801

SST

Serial status register

0x3802

ASST

Audio serial status register

0x3803

Reserved area Caution Do not access this area.

−

0x3804

PDT

Port data register

PIO

0x3805

PCD

Port command register

0x3806

HDT

Host data register

HIO

0x3807

HST

Host status register

0x3808 to 0x380F

Reserved area Caution Do not access this area.

−

0x3810

SDDR

SD card data register

SDCIF

0x3811

SDCMD_IDX SD card command register index

0x3812

SDCMD_AGH SD card command register argument high

0x3813

SDCMD_AGL SD card command register argument low

0x3814

SDCTL

SD card control register

0x3815

SDRPR

SD card response register

0x3816

SDSBR

SD card CRC status busy register

0x3817 to 0x381F

Reserved area Caution Do not access this area.

−

0x3820

TIR

Timer initialize value register

Timer

0x3821

TCR

Timer count register

0x3822

TCSR

Timer control / status register

0x3823

TENR

Timer count enable register

0x3824 to 0x382D

Reserved area Caution Do not access this area.

−

0x382E

CLKCNTL

Clock control register

PLL

0x382F

Reserved area Caution Do not access this area.

−

0x3830

PSAR

DMA start address register

SDCIF

0x3831

PSR

DMA size register

0x3832

PRR

DMA pointer register

0x3833

PCR

DMA control register

0x3834 to 0x383F

Reserved area Caution Do not access this area.

−

Cautions

1. The register names listed in this table are not reserved words of the assembler or the C

language. Therefore, when using these names in assembler or C, the user must define them.

2. The same register is accessed, as long as the address is the same, regardless of whether

the X memory space or Y memory space is accessed.

3. Even different registers cannot be accessed at the same time from both the X and Y memory

spaces.

24

Data Sheet U14867EJ5V0DS

Share Link: