C8051F502-IMR Silicon Laboratories Inc, C8051F502-IMR Datasheet - Page 151

• Manufacturer Part Number: C8051F502-IMR
• Description: MCU 8-Bit C8051F50x 8051 CISC 64KB Flash 2.5V/3.3V/5V 32-Pin QFN EP T/R
• Manufacturer: Silicon Laboratories Inc

Specifications of C8051F502-IMR

• Package: 32QFN EP
• Device Core: 8051
• Family Name: C8051F50x
• Maximum Speed: 50 MHz
• Ram Size: 4.25 KB
• Program Memory Size: 64 KB
• Operating Supply Voltage: 2.5|3.3|5 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 25
• Interface Type: I2C/SPI/UART
• On-chip Adc: 32-chx12-bit
• Operating Temperature: -40 to 125 °C
• Number Of Timers: 4

SFR Definition 18.1. EMI0CN: External Memory Interface Control
SFR Address = 0xAA; SFR Page = 0x00
Reset
Name
Bit
7:0 PGSEL[7:0] XRAM Page Select Bits.
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
0
6
5
0
Rev. 1.2
4
0
PGSEL[7:0]
R/W
Function
3
0
C8051F50x/F51x
2
0
1
0
0
0
151