参数资料
型号: MC68HC05C8AFB
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP44
封装: QFP-44
文件页数: 144/166页
文件大小: 1914K
代理商: MC68HC05C8AFB
Serial Communications Interface (SCI)
SCI Input/Output (I/O) Registers
MC68HC05C8A MC68HCL05C8A MC68HSC05C8A — Rev. 5.0
Technical Data
MOTOROLA
Serial Communications Interface (SCI)
79
R8 — Bit 8 (Received)
When the SCI is receiving 9-bit characters, R8 is the ninth bit of the
received character. R8 receives the ninth bit from the receive shift
register at the same time that the SCDR receives the other eight bits.
Reset has no effect on the R8 bit.
T8 — Bit 8 (Transmitted)
When the SCI is transmitting 9-bit characters, T8 is the ninth bit of the
transmitted character. T8 is loaded into the transmit shift register at
the same time that SCDR is loaded into the transmit shift register.
Reset has no effect on the T8 bit.
M — Character Length Bit
This read/write bit determines whether SCI characters are 8 bits long
or 9 bits long. The ninth bit can be used as an extra stop bit, as a
receiver wakeup signal, or as a mark or space parity bit. Reset has no
effect on the M bit.
1 = 9-bit SCI characters
0 = 8-bit SCI characters
WAKE — Wakeup Bit
This read/write bit determines which condition wakes up the SCI: a
logic 1 (address mark) in the most significant bit position of a received
character or an idle condition of the PD0/RDI pin. Reset has no effect
on the WAKE bit.
1 = Address mark wakeup
0 = Idle line wakeup
Address: $000E
Bit 7
654321
Bit 0
Read:
R8
T8
0
M
WAKE
0
Write:
Reset:
Unaffected by reset
= Unimplemented
Figure 9-5. SCI Control Register 1 (SCCR1)
相关PDF资料
PDF描述
MC68606FN12C 1 CHANNEL(S), 2.048M bps, MULTI PROTOCOL CONTROLLER, PQCC84
MC68CK16Z4CFC16 16-BIT, MICROCONTROLLER, PQFP132
MC68HC16Z2CPV16 16-BIT, MROM, MICROCONTROLLER, PQFP144
MC68HC16Z2MPV20 16-BIT, MROM, MICROCONTROLLER, PQFP144
MCK16Z1VFC25B1 16-BIT, MICROCONTROLLER, PQFP132
相关代理商/技术参数
参数描述
MC68HC05C9 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:TECHNICAL DATA
MC68HC05C9A 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05C9AB 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05C9AFB 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05C9AFN 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Microcontrollers