 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
C8051F124-GQR Datasheet(PDF) 29 Page - Silicon Laboratories |
|
||||||||||||||||||||||||||||||
C8051F124-GQR Datasheet(HTML) 29 Page - Silicon Laboratories |
|
|
29 / 350 page  C8051F120/1/2/3/4/5/6/7 C8051F130/1/2/3 Rev. 1.4 29 1.2. On-Chip Memory The CIP-51 has a standard 8051 program and data address configuration. It includes 256 bytes of data RAM, with the upper 128 bytes dual-mapped. Indirect addressing accesses the upper 128 bytes of general purpose RAM, and direct addressing accesses the 128 byte SFR address space. The lower 128 bytes of RAM are accessible via direct and indirect addressing. The first 32 bytes are addressable as four banks of general purpose registers, and the next 16 bytes can be byte addressable or bit addressable. The devices include an on-chip 8k byte RAM block and an external memory interface (EMIF) for accessing off-chip data memory. The on-chip 8k byte block can be addressed over the entire 64k external data mem- ory address range (overlapping 8k boundaries). External data memory address space can be mapped to on-chip memory only, off-chip memory only, or a combination of the two (addresses up to 8k directed to on- chip, above 8k directed to EMIF). The EMIF is also configurable for multiplexed or non-multiplexed address/data lines. On the C8051F12x and C8051F130/1, the MCU’s program memory consists of 128 k bytes of banked Flash memory. The 1024 bytes from addresses 0x1FC00 to 0x1FFFF are reserved. On the C8051F132/3, the MCU’s program memory consists of 64 k bytes of Flash memory. This memory may be reprogrammed in-system in 1024 byte sectors, and requires no special off-chip programming voltage. On all devices, there are also two 128 byte sectors at addresses 0x20000 to 0x200FF, which may be used by software for data storage. See Figure 1.8 for the MCU system memory map. Figure 1.8. On-Chip Memory Map PROGRAM/DATA MEMORY (FLASH) FLASH (In-System Programmable in 1024 Byte Sectors) 0x00000 0x1FFFF RESERVED 0x1FC00 0x1FBFF Scrachpad Memory (DATA only) 0x200FF 0x20000 (Direct and Indirect Addressing) Upper 128 RAM (Indirect Addressing Only) Special Function Registers (Direct Addressing Only) DATA MEMORY (RAM) General Purpose Registers Bit Addressable Lower 128 RAM (Direct and Indirect Addressing) INTERNAL DATA ADDRESS SPACE EXTERNAL DATA ADDRESS SPACE XRAM - 8192 Bytes (accessable using MOVX instruction) 0x0000 0x1FFF Off-chip XRAM space 0x2000 0xFFFF Up To 256 SFR Pages 1 3 0 2 C8051F120/1/2/3/4/5/6/7 C8051F130/1 FLASH (In-System Programmable in 1024 Byte Sectors) 0x00000 0x0FFFF Scrachpad Memory (DATA only) 0x200FF 0x20000 C8051F132/3 |
Similar Part No. - C8051F124-GQR |
|
Similar Description - C8051F124-GQR |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.NET |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
