C8051T322-GQR Silicon Labs, C8051T322-GQR Datasheet - Page 89

• Manufacturer Part Number: C8051T322-GQR
• Description: 8-bit Microcontrollers - MCU USB-OTP-16K-LQFP32
• Manufacturer: Silicon Labs

Specifications of C8051T322-GQR

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

into XRAM space at addresses 0x0400 to 0x07FF. The normal on-chip XRAM at the same addresses can-
not be accessed when the USBFAE bit is set to 1.
Important Note: The USB clock must be active when accessing FIFO space.
Figure 15.3. USB FIFO Space and XRAM Memory Map with USBFAE set to 1
0xFFFF
0x07C0
0x07BF
0x07FF
0x073F
0x063F
0x043F
0x03FF
0x0800
0x0740
0x0640
0x0440
0x0400
0x0000
On-Chip XRAM
On-Chip XRAM
(128 bytes)
(256 bytes)
(512 bytes)
Endpoint0
Endpoint1
Endpoint2
Endpoint3
(64 bytes)
(64 bytes)
C8051T620/621/320/321/322/323
Free
Rev. 1.1
USB FIFO Space
(USB Clock Domain)
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