參數(shù)資料
型號(hào)： XC68307FG8V
廠商： MOTOROLA INC
元件分類： 微控制器/微處理器
英文描述： 16.67 MHz, MICROCONTROLLER, PQFP100
封裝： PLASTIC, QFP-100
文件頁數(shù)： 8/35頁
文件大小： 172K
代理商： XC68307FG8V
16
MC68307 TECHNICAL INFORMATION
MOTOROLA
UART Programming Model
The programming model for the UART module is listed in Table 10. The FC (function code) column indicates
whether a register is restricted to supervisor access (S) or programmable to exist in either supervisor or user
space (S/U). The address column contains the offset from the base address (MBASE) contained in the SIM07
MBAR.
Table 10. UART Module Registers
Address
FC
Register Name
MBASE+$101
S/U
Do not access byte $100
UART mode register (UMR1,UMR2)
MBASE+$103
S/U
Do not access byte $102 UART status/clock select register (USR,UCSR)
MBASE+$105
S/U
Do not access byte $104
UART command register (UCR)
MBASE+$107
S/U
Do not access byte $106
(read) UART receive buffer (UTB, URB)
MBASE+$107
S/U
Do not access byte $106
(write) UART transmit buffer (UTB, URB)
MBASE+$109
S/U
Do not access byte $108
(read) UART CTS change register (UCCR)
MBASE+$109
S/U
Do not access byte $108 (write) UART auxiliary control register (UACR)
MBASE+$10B
S/U
Do not access byte $10A
(read) UART interrupt status register (UISR)
MBASE+$10B
S/U
Do not access byte $10A
(write) UART interrupt mask register (UIMR)
MBASE+$10D
S/U
Do not access byte $10C
Baud rate gen prescaler msb (UBG1)
MBASE+$10F
S/U
Do not access byte $10E
Baud rate gen prescaler lsb (UBG2)
MBASE+$119
S/U
Do not access byte $118
UART interrupt vector register (UIVR)
MBASE+$11B
S/U
Do not access byte $11A
UART CTS unlatched input port (UCP)
MBASE+$11D
S/U
Do not access byte $11C
UART RTS output bit set cmd (URBS)
MBASE+$11F
S/U
Do not access byte $11E
UART RTS output bit reset cmd (URBR)
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