C8051F581-IMR Silicon Labs, C8051F581-IMR Datasheet - Page 160

• Manufacturer Part Number: C8051F581-IMR
• Description: 8-bit Microcontrollers - MCU 50MIPS 128kB 8kB SPI
• Manufacturer: Silicon Labs

Specifications of C8051F581-IMR

• Rohs: yes
• Core: 8051
• Processor Series: C8051
• Data Bus Width: 8 bit

C8051F58x/F59x
SFR Definition 18.1. EMI0CN: External Memory Interface Control
SFR Address = 0xAA; SFR Page = 0x00
160
Name
Reset
7:0 PGSEL[7:0] XRAM Page Select Bits.
Bit
Type
Bit
Name
7
0
The XRAM Page Select Bits provide the high byte of the 16-bit external data memory
address when using an 8-bit MOVX command, effectively selecting a 256-byte page of
RAM.
0x00: 0x0000 to 0x00FF
0x01: 0x0100 to 0x01FF
...
0xFE: 0xFE00 to 0xFEFF
0xFF: 0xFF00 to 0xFFFF
6
0
5
0
Rev. 1.2
4
0
PGSEL[7:0]
R/W
Function
3
0
2
0
1
0
0
0