mc68hc908bd48 Freescale Semiconductor, Inc, mc68hc908bd48 Datasheet - Page 177
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mc68hc908bd48
Manufacturer Part Number
mc68hc908bd48
Description
M68hc08 Microcontrollers Microcontroller
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC908BD48.pdf
(288 pages)
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13.5.8 USB Endpoint 0 Data Registers 0 to 7 (UD0R0–UD0R7)
13.5.9 USB Endpoint 1/2 Data Registers 0 to 7 (UD1R0–UD1R7)
MC68HC908BD48
Freescale Semiconductor
—
Rev. 2.1
Figure 13-8. USB Endpoint 0 Data Registers 0 to 7 (UD0R0–UD0R7)
Figure 13-9. USB Endpoint 1 Data Registers 0 to 7 (UD1R0–UD1R7)
Address:
Address:
UE0RDx[7:0] — Endpoint 0 Receive Data Buffers
UE0TDx[7:0] — Endpoint 0 Transmit Data Buffers
UE1TDx[7:0] — Endpoint 1/2 Transmit Data Buffers
Reset:
Reset:
Read: UE0RDx7 UE0RDx6 UE0RDx5 UE0RDx4 UE0RDx3 UE0RDx2 UE0RDx1 UE0RDx0
Read:
Write: UE0TDx7 UE0TDx6 UE0TDx5 UE0TDx4 UE0TDx3 UE0TDx2 UE0TDx1 UE0TDx0
Write: UE1TDx7 UE1TDx6 UE1TDx5 UE1TDx4 UE1TDx UE1TDx2 UE1TDx1 UE1TDx0
These eight 8-bit buffers are serially loaded with OUT token or
SETUP token data received over the USB’s D+ and D– lines. These
buffers are for endpoint 0.
These eight 8-bit buffers are loaded by user software with data to be
sent on the USB bus on the next IN token directed at endpoint 0.
These eight 8-bit buffers are loaded by user software with data to be
sent on the USB bus on the next IN token directed at endpoint 1 or
endpoint 2. The ENDADD bit in the USB control register 1 determines
either endpoint 1 or endpoint 2 uses these buffers.
Bit 7
Bit 7
Universal Serial Bus Module (USB)
$0030–$0037
$0038–$003F
6
6
5
5
Indeterminate after reset
Indeterminate after reset
4
4
Universal Serial Bus Module (USB)
3
3
2
2
1
1
Data Sheet
Bit 0
Bit 0
177
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