M30240ECFP MITSUBISHI [Mitsubishi Electric Semiconductor], M30240ECFP Datasheet - Page 50

• Manufacturer Part Number: M30240ECFP
• Description: M30240 Group Specification
• Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]

Specifications in this manual are tentative and subject to change
Universal Serial Bus
Figure 1.31: USB Control Register
Figure 1.32: USB Function Address Register
2.18.4.2 USB Control Register
2.18.4.3 USB Function Address Register
The USB Control Register, shown in Figure 1.31, is used to control the USB FCU. This register is not reset
by a USB reset signaling. After the USB is enabled (USBC7 set to “1”), a minimum delay of 250ns (three 12
MHz clock periods) is needed before performing any other USB register read/write operations.
The USB Function Address Register, shown in Figure 1.32, maintains the 7-bit USB address assigned by the
host. The USB FCU uses this register value to decode USB token packet addresses. At reset, when the de-
vice is not yet configured, the value is 00
cation Notes USB Consecutive Set Address.
USB Control Register
b7
Function Address Register
b7
0
b6
b5
b6
b4
b5
b3
b4
0 0
b2
b3
b1
b2
b0
0
b1
Note 1: For USB normal operation
Note 2: For USB suspend operation
Note 3: P8
Note 4: All USB internal registers are held at their default values.
Bit symbol
Reserved
b0
USBC7
USBC3
USBC4
USBC6
USBC5
Symbol
USBC
Reserved
Bit symbol
FUNAD0-6
Symbol
USBA
6
is used as GPIO pin
Tranceiver voltage converter
High/Low current mode selection
USB tranceiver voltage converter
enable bit
USB clock enable bit
USB SOF port select bit
USB enable bit
Function Address
16
Bit name
. For the procedures on how to update this register, refer to Appli-
1-50
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Bit name
Address
000C16
Address
0300
16
0: High current mode (Note 1)
1: Low current mode (Note 2)
0: Disabled
1: Enabled
0: Disabled
1: Enabled
0: Disabled (Note 3)
1: Enabled
0: Disabled (Note 4)
1: Enabled
Must always be set to "0"
7-bit programmable
Function Address
Must always be set to "0"
Function
Mitsubishi microcomputers
When reset
Function
M30240 Group
When reset
0016
00
16
R
R
W
W