M37532M4 Datasheet, PDF (23/50 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI MICROCOMPUTERS
7532 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
b7
b0
Transmit buffer register
(TB: address 001816)
After setting data to address 001816, a content of the
transmit buffer register transfers to the transmit shift
register automatically.
CPU read: Disabled
CPU write: Set/Clear
Hardware read: Used
Hardware write: Not used
b7
b0
Receive buffer register
(RB: address 001816)
By reading data from address 001816, a content of the
receive buffer register can be read out.
CPU read: Enabled
CPU write: Disabled
Hardware read: Not used
Hardware write: Set/Clear
b7
b0
USB status register
(USBSTS: address 001916)
Transmit buffer empty flag
0: Buffer full
1: Buffer empty
EOP detection flag
0: Not detected
1: Detect
False EOP error flag
0: No error
1: False EOP error
CRC error flag
0: No error
1: CRC error
PID error flag
0: No error
1: PID error
Bit stuffing error flag
0: No error
1: Bit stuffing error
Summing error flag
0: No error
1: Summing error
Receive buffer full flag
0: Buffer empty
1: Buffer full
Fig. 26 Structure of serial I/O1-related registers (1)
CPU read: Enabled
CPU write: Disabled
Hardware read: Not used
Hardware write: Set/Clear
CPU read: Enabled
CPU write: Clear
Hardware read: Not used
Hardware write: Set
CPU read: Enabled
CPU write: Disabled
Hardware read: Not used
Hardware write: Set/Clear
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