m5m51016btp Renesas Electronics Corporation., m5m51016btp Datasheet - Page 150

• Manufacturer Part Number: m5m51016btp
• Description: Renesas 16-bit Single-chip Microcomputer M16c Family / M16c/20 Series
• Manufacturer: Renesas Electronics Corporation.

M30245 Group
Rev.2.00 Oct 16, 2006
REJ09B0340-0200
Figure 2.8.11. USB endpoint enable register
Figure 2.8.12. USB x(x=0~4) IN FIFO data register
USB Endpoint Enable register
(b15)
0
USB Endpoint x IN FIFO Data register
b7
(b15)
b7
0
Endpoints 0 to 4 respectively have their IN FIFOs. At the time of transmission to the host PC, write the
transmit data in these registers. Access these registers in word cycle or byte cycle to the lower byte.
The configuration of USB x(x=0~4) IN FIFO data register is shown in Figure 2.8.12.
Endpoints 1 to 4 are used to enable endpoint IN/OUT FIFOs for use. The endpoint 0 is always enabled
and cannot be disabled by software. All Endpoints 1 to 4 are disabled after reset.
The configuration of USB endpoint enable register is shown in Figure 2.8.11.
USB endpoint x(x=0 to 4) IN FIFO data register
USB endpoint enable register
0
0
0
0
0
(b8)
(b8)
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b0
b0
0
b7
b7
b0
b0
Note 1: Data is undefined if this register is read.
Note 2: Write only to this register with a Word command or a Byte command to the lower 8 bits.
DATA_15-0
Bit Symbol
Bit Symbol
EP1_OUT
EP1_IN
EP2_OUT
EP2_IN
EP3_OUT
EP3_IN
EP4_OUT
Reserved
EP4_IN
Symbol
USBEPEN
Symbol
EPxI (x = 0 - 4)
Do not write a byte of data to the upper 8 bits. (b8 - b15)
EP1 OUT enable
EP1 IN enable
EP2 OUT enable
EP3 OUT enable
EP4 OUT enable
EP4 IN enable
EP2 IN enable
EP3 IN enable
EP0 IN FIFO Data
Bit Name
Bit Name
Address
028E
02E0
02EC
Address
16
16
16
, 02E4
, 02F0
Write transmit data to this register
16
16
, 02E8
Function
0 : Disabled
1 : Enabled
Must always be “0”
16
,
When reset
Function
When reset
N/A
0000
16
2. USB function
R W
X O
O O
R W
O O