r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 1600

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r5s77631ay266bgv

Manufacturer Part Number
r5s77631ay266bgv
Description
Renesas 32-bit Risc Microcomputer Superhtm Risc Engine Family Sh-4a Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
Section 36 USB Function Controller (USBF)
36.3.25 EP1 Receive Data Size Register (EPSZ1)
EPSZ1 is a receive data size resister for endpoint 1. EPSZ1 indicates the number of bytes received
from the host. FIFO of endpoint 1 has a dual-buffer configuration. The size of the received data
indicated by this register is the size of the currently selected side (can be read by CPU).
Rev. 1.00 Oct. 01, 2007 Page 1534 of 1956
REJ09B0256-0100
Bit
31 to 8 
7 to 0
Initial value:
Initial value:
R/W:
R/W:
Bit: 31
Bit: 15
Bit Name
R
R
30
14
R
R
29
13
R
R
Initial Value R/W Description
Undefined
All 0
28
12
R
R
27
11
R
R
26
10
R
R
R
R
25
R
R
9
Number of received bytes for endpoint 1
Reserved
These bits are always read as undefined value.
24
R
R
8
23
R
R
7
0
22
R
R
6
0
21
R
R
5
0
20
R
R
4
0
19
R
R
3
0
18
R
R
2
0
17
R
R
1
0
16
R
R
0
0

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