m66291 Renesas Electronics Corporation., m66291 Datasheet - Page 74

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

M 6 6 2 9 1 G P / H P
2.37 Port Data Register
R e v 1 . 0 1
(1) PDAT (Port Data) Bits (b6~b0)
b15
15~7
Port Data Register (PORT_DATA)
6~0
0
-
-
b
The port pins, P0 ~ P6, automatically turn to input/output ports by setting to 8-bit bus interface mode
(controlled by HWR/BYTE pin). When set to 16-bit bus interface mode, all functions of this register become
invalid. Further, the writing into this register at 16-bit bus interface mode becomes invalid while the reading
becomes H’0000.
These bits indicate the port pin state.
When the PIEN bit of the Port Control Register is set to “0”, this bit reads out “0”.
2 0 0 4 . 1 1 . 0 1
14
Reserved. Set it to “0”.
PDAT
Port Data
0
-
-
13
0
-
-
p a g e 7 4 o f 1 2 2
12
0
-
-
Bit name
11
0
-
-
10
0
-
-
9
0
-
-
0 :
1 :
The port number corresponds to the bit number.
b0 : P0 pin
b1 : P1 pin
b2 : P2 pin
b3 : P3 pin
b4 : P4 pin
b5 : P5 pin
b6 : P6 pin
8
0
-
-
”L” level
”H” level
7
0
-
-
6
0
-
-
Function
5
0
-
-
4
0
-
-
PDAT
3
0
-
-
2
0
-
-
<Address : H'5C>
<H/W reset : H'0000>
<USB bus reset : ->
1
<S/W reset : ->
0
-
-
R
0
b0
0
-
-
W
0