m66291 Renesas Electronics Corporation., m66291 Datasheet - Page 52

• Manufacturer Part Number: m66291
• Description: Assp Usb2.0 Device Controller
• Manufacturer: Renesas Electronics Corporation.

M 6 6 2 9 1 G P / H P
2.25 EP0_FIFO Data Register
R e v 1 . 0 1
(1) EP0_FIFO (EP0_FIFO Data) Bits (b15~b0)
Note:The upper 8 bits (b15 to b8) become invalid in the 8-bit-mode (using the Octl bit of the EP0_FIFO Select Register or
b15
15~0
EP0_FIFO Data Register (EP0_FIFO_DATA)
?
-
-
b
*HWR/*BYTE pin).
The receive data from the CPU side buffer is read or the transmit data to the CPU side buffer is written
through this register.
When set to control write transfer (ISEL bit = “0”), the receive data from the buffer is read through this
register.
When set to control read transfer (ISEL bit = “1”), the transmit data to the buffer is written through this
register.
Make sure that the E0req bit is set to “0” before reading/writing these bits.
2 0 0 4 . 1 1 . 0 1
Note:
EP0_FIFO
EP0_FIFO Data
14
?
-
-
Refer to “3.2 FIFO Buffer” for CPU/SIE side.
13
?
-
-
p a g e 5 2 o f 1 2 2
12
?
-
-
Bit name
11
?
-
-
10
?
-
-
9
?
-
-
<When set to control write transfer>
Reads receive data
<When set to control read transfer>
Writes transmit data
Read
Write
8
EP0_FIFO
?
-
-
7
?
-
-
6
?
-
-
Function
5
?
-
-
4
?
-
-
3
?
-
-
2
?
-
-
<H/W reset : H'????>
<Address : H’34>
<USB bus reset : ->
<S/W reset : ->
1
?
-
-
R
b0
?
-
-
W