C8051T622-GMR Silicon Labs, C8051T622-GMR Datasheet - Page 55

• Manufacturer Part Number: C8051T622-GMR
• Description: 8-bit Microcontrollers - MCU USB-OTP-16K-QFN24
• Manufacturer: Silicon Labs

Specifications of C8051T622-GMR

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

SFR Definition 10.2. EMI0CF: External Memory Configuration
SFR Address = 0x85
Name
Reset
Bit
5:0
Type
7
6
Bit
USBFAE
Unused
Unused
Name
R
7
0
Unused. Read = 0b; Write = Don’t Care
USB FIFO Access Enable.
0: USB FIFO RAM not available through MOVX instructions.
1: USB FIFO RAM available using MOVX instructions. The 256 bytes of USB RAM
will be mapped in XRAM space at addresses 0x0400 to 0x04FF. The USB clock
must be active and greater than or equal to twice the SYSCLK (USBCLK > 2 x
SYSCLK) to access this area with MOVX instructions.
Unused. Read = 000011b; Write = Don’t Care
USBFAE
R/W
6
0
R
5
0
C8051T622/3 and C8051T326/7
Rev. 1.1
R
4
0
Function
R
3
0
R
2
0
R
1
1
R
0
1
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