C8051F98X View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

MFG CO.

C8051F98X

Ultra Low Power, 8-2 kB Flash, Capacitive Sensing MCU

Silicon Laboratories 

C8051F99x-C8051F98x

10. Memory Organization

The memory organization of the CIP-51 System Controller is similar to that of a standard 8051. There are

two separate memory spaces: program memory and data memory. Program and data memory share the

same address space but are accessed via different instruction types. The memory organization of the

C8051F99x-C8051F98x device family is shown in Figure 10.1.

PROGRAM/DATA MEMORY

(FLASH)

C8051F980/1/6/7

C8051F990/1/6/7

0x1FFF

8 kB FLASH

(In-System

Programmable in 512

Byte Sectors)

0x0000

0x0FFF

C8051F982/3/8/9

4 kB FLASH

(In-System

Programmable in 512

Byte Sectors)

DATA MEMORY

(RAM)

INTERNAL DATA ADDRESS SPACE

Upper 128 RAM

(Indirect Addressing Only)

Special Function

Registers

(Direct Addressing Only)

0

F

(Direct and Indirect

Addressing)

Bit Addressable

General Purpose

Registers

Lower 128 RAM

(Direct and Indirect

Addressing)

EXTERNAL DATA ADDRESS SPACE

0xFFFF

0x0000

Unpopulated Address Space

0x07FF

C8051F985

2 kB FLASH

(In-System

Programmable in 512

Byte Sectors)

0x0100

0x00FF

0x0000

XRAM - 256 Bytes

(accessable using MOVX

instruction)

0x0000

Figure 10.1. C8051F99x-C8051F98x Memory Map

Rev. 1.0

127

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