参数资料
型号: MC68HC05C9EFB
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: 131/144页
文件大小: 1628K
代理商: MC68HC05C9EFB
Serial Communications Interface (SCI)
SCI I/O Registers
MC68HC05C9E
Advance Information
MOTOROLA
Serial Communications Interface (SCI)
87
N
O
N-D
I
SC
L
O
SU
R
E
AG
R
EEMENT
R
E
Q
U
IR
ED
FE — Receiver Framing Error Flag
This clearable, read-only flag is set when there is a logic 0 where a
stop bit should be in the character shifted into the receive shift
register. If the received word causes both a framing error and an
overrun error, the OR flag is set and the FE flag is not set. Clear the
FE bit by reading the SCSR and then reading the SCDR.
1 = Framing error
0 = No framing error
9.12.5 Baud Rate Register
The baud rate register (BAUD), shown in Figure 9-12, selects the baud
rate for both the receiver and the transmitter.
SCP1 — SCP0–SCI Prescaler Select Bits
These read/write bits control prescaling of the baud rate generator
clock, as shown in Table 9-1. Reset clears both SCP1 and SCP0.
Address: $000D
Bit 7
6543
2
1
Bit 0
Read:
SCP1
SCP0
SCR2
SCR1
SCR0
Write:
Reset:
——
00
UUU
= Unimplemented
U = Unaffected
Figure 9-12. Baud Rate Register (BAUD)
Table 9-1. Baud Rate Generator
Clock Prescaling
SCP1 and SCP0
Baud Rate
Generator Clock
0 0
Internal clock
÷ 1
0 1
Internal clock
÷ 3
1 0
Internal clock
÷ 4
1 1
Internal clock
÷ 13
相关PDF资料
PDF描述
M38227MCA-XXXFP 8-BIT, MROM, 5 MHz, MICROCONTROLLER, PQFP80
MB89P475PFV-201 8-BIT, 12.5 MHz, MICROCONTROLLER, PQFP48
MC68HC908QY1VP 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDIP16
MC68HRC908JL3CFA 8-BIT, FLASH, 4 MHz, MICROCONTROLLER, PQFP48
MC68360CRC25L 4 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, CPGA241
相关代理商/技术参数
参数描述
MC68HC05CT4FB 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:General Release Specification
MC68HC05CT4FN 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:General Release Specification
MC68HC05D9 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:8-bit microcomputer with PWM outputs and LED drive
MC68HC05E0 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit
MC68HC05E0FN 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller