參數(shù)資料
型號: MC68HC705C9ACP
廠商: Freescale Semiconductor
文件頁數(shù): 85/118頁
文件大?。?/td> 0K
描述: IC MCU 2.1MHZ 16K OTP 40-DIP
標準包裝: 9
系列: HC05
核心處理器: HC05
芯體尺寸: 8-位
速度: 2.1MHz
連通性: SCI,SPI
外圍設備: POR,WDT
輸入/輸出數(shù): 24
程序存儲器容量: 16KB(16K x 8)
程序存儲器類型: OTP
RAM 容量: 352 x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 40-DIP(0.600",15.24mm)
包裝: 管件
SCI I/O Registers
MC68HC05C9A Advance Information Data Sheet, Rev. 4.1
Freescale Semiconductor
69
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
9.13.5 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.
SCR2 — SCR0–SCI Baud Rate Select Bits
These read/write bits select the SCI baud rate, as shown in Table 9-2. Resets have no effect on the
SCR2–SCR0 bits.
$000D
Bit 7
6543
2
1
Bit 0
Read:
SCP1
SCP0
SCR2
SCR1
SCR0
Write:
Reset:
0
U
= Unimplemented
U = Undetermined
Figure 9-12. Baud Rate Register (BAUD)
Table 9-1. Baud Rate Generator Clock Prescaling
SCP[1:0]
Baud Rate Generator Clock
00
Internal Clock
÷ 1
01
Internal Clock
÷ 3
10
Internal Clock
÷ 4
11
Internal Clock
÷ 13
Table 9-2. Baud Rate Selection
SCR[2:0]
SCI Baud Rate (Baud)
000
Prescaled Clock
÷ 1
001
Prescaled Clock
÷ 2
010
Prescaled Clock
÷ 4
011
Prescaled Clock
÷ 8
100
Prescaled Clock
÷ 16
101
Prescaled Clock
÷ 32
110
Prescaled Clock
÷ 64
111
Prescaled Clock
÷ 128
相關PDF資料
PDF描述
MC68HC705C9ACFN IC MCU 2.1MHZ 16K OTP 44-PLCC
EHFWX2PKG CONN EEE1394 FMAL T/H CROSS BLK
EHFW2BXPKG CONN EEE1394 FMALE T/H BLK 4-40
P87C52X2FA,512 IC 80C51 MCU 8K OTP 44-PLCC
R5F1007EANA#U0 MCU 16BIT 64KB FLASH 24WQFN
相關代理商/技術參數(shù)
參數(shù)描述
MC68HC705C9ACPE 制造商:Freescale Semiconductor 功能描述:
MC68HC705C9AFNE 功能描述:8位微控制器 -MCU 8B MCU 352 BYTES RAM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
MC68HC705C9AVFNE 功能描述:8位微控制器 -MCU 8B MCU 352 BYTES RAM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
MC68HC705E6CDW 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述:
MC68HC705G1B 制造商:Rochester Electronics LLC 功能描述:- Bulk