GDC21D601 View Datasheet(PDF) - Hynix Semiconductor

Part Name

Description

Manufacturer

GDC21D601

32-Bit RISC MCU

Hynix Semiconductor 

GDC21D601

7. Multi-Function Pin

The GDC21D601 has 80 Bit PIO pins with multiplexed by other functional pins. So you must use properly these

multi-function pins by setting the PINMUX control registers in MCU controller. (See Section 8. MCU Controller

for detail)

0XFFFF FFFF

APB Register

0XFFFF F000

0XFFFF E000

ASB Register

MEMORY AREA

0X0800 0000

Chip Select Area

0X0000 0000

0XFFFF FFFF

FD00

FC00

FB00

FA00

F900

F800

F700

F600

F500

F400

F300

F200

F100

F000

EF00

EE00

ED00

EC00

EB00

Reserved

PIO

I2C2

I2C1

I2C0

SSI

UART2/Smart

UART1

UART0

TIMER

RTC

INTC

WDT

PMU

DMAC

DRAMC

SMI

MCUC

Figure 1. System Memory Map

0XFFFF EAFF

Reserved

0X6000 0000

0X5000 0000 ARM7 TEST REG

0X4000 0000

Reserved

DRAM BANK #1

0X3000 0000

DRAM BANK #0

0X2000 0000

0X1000 1000

0X1000 0000

WINDOW AREA

ON-CHIP RAM

0X0800 0000

0X0700 0000

0X0600 0000

0X0500 0000

0X0400 0000

0X0300 0000

0X0200 0000

0X0100 0000

0X0000 0000

WINDOW AREA

nCS7

nCCSS66

nCCSS57

nCS4

nCS3

nCS2

nCS1

nCS0

Address

0x2FFFFFF

MODE R

nCS2

0x01FFFFFF

nCS1

0x00FFFFFF

0x00000FFF

0x00000000

nCS0

MODE A

nCS2

nCS1

nCS0 or

DRAM #0

On-Chip RAM

MODE B

nCS2

nCS1

DRAM #0

1. MODE R : Reset Mode : default mode from power-on reset (ReMap is LOW)

2. MODE A : On-Chip SRAM in 0x0000 ~ 0x07FF range : ReMap is HIGH and isram is HIGH

3. MODE B : DRAM Bank #0 in 0x00000000 ~ 0x00FFFFFF range : Remap is HIGH and drambank0 is HIGH

Figure 2. Memory Map Configuration

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