参数资料
型号: PIC16C765-I/L
厂商: Microchip Technology
文件页数: 128/165页
文件大小: 0K
描述: IC MCU OTP 8KX14 USB 44PLCC
产品培训模块: Asynchronous Stimulus
8-bit PIC® Microcontroller Portfolio
标准包装: 27
系列: PIC® 16C
核心处理器: PIC
芯体尺寸: 8-位
速度: 24MHz
连通性: SCI,UART/USART,USB
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 33
程序存储器容量: 14KB(8K x 14)
程序存储器类型: OTP
RAM 容量: 256 x 8
电压 - 电源 (Vcc/Vdd): 4.35 V ~ 5.25 V
数据转换器: A/D 8x8b
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 44-LCC(J 形引线)
包装: 管件
产品目录页面: 636 (CN2011-ZH PDF)
配用: AC164309-ND - MODULE SKT FOR PM3 44PLCC
ISPICR1-ND - ADAPTER IN-CIRCUIT PROGRAMMING
444-1001-ND - DEMO BOARD FOR PICMICRO MCU
2000 Microchip Technology Inc.
Preliminary
DS41124C-page 65
PIC16C745/765
10.5.1.6
USB Control Register (UCTRL)
The control register provides various control and con-
figuration information for the USB.
REGISTER 10-6:
USB CONTROL REGISTER (UCTRL: 195h)
U-0
R-X
R/C-0
R/W-0
U-0
SE0
PKT_DIS
DEV_ATT RESUME
SUSPND
R = Readable bit
W = Writable bit
C = Clearable bit
U = Unimplemented bit,
read as ‘0’
-n = Value at POR reset
X = Don’t care
bit7
bit0
bit 7-6:
Unimplemented: Read as ’0’
bit 5:
SE0: Live Single Ended Zero
This status bit indicates that the D+ and D- lines are both pulled to low.
1
= Single ended zero being received
0
= Single ended zero not being received
bit 4
PKT_DIS: The PKT_DIS bit informs the MCU that the SIE has disabled packet transmission and recep-
tion. Clearing this bit allows the SIE to continue token processing. This bit is set by the SIE when a Setup
Token is received allowing software to dequeue any pending packet transactions in the BDT before resum-
ing token processing. The PKT_DIS bit is set under certain conditions such as back to back SETUP
tokens. This bit is not set on every SETUP token and can be modified only when UCTRL.SUSPND = 0.
bit 3:
DEV_ATT: Device Attach
Enables the 3.3V output.
1
= When DEV_ATT is set, the VUSB pin will be driven with 3.3V (nominal)
0
= The VUSB pins (D+ and D-) will be in a high impedance state
bit 2:
RESUME: Setting this bit will allow the USB to execute resume signaling. This will allow the USB to
perform remote wake-up. Software must set RESUME to 1 for 10 mS then clear it to 0 to enable remote
wake-up. For more information on RESUME signaling, see Section 7.1.7.5, 11.9 and 11.4.4 in the USB 1.1
specification.
1
= Perform RESUME signaling
0
= Normal operation
bit 1:
SUSPND: Suspends USB operation and clocks and places the module in low power mode. This bit will
generally be set in response to a UIDLE interrupt. It will generally be reset after an ACTIVITY interrupt.
VUSB regulation will be different between suspend and non-suspend modes. The VUSB pin will still be
driven, however the transceiver outputs are disabled.
1
= USB module in power conserve mode
0
= USB module normal operation
bit 0:
Unimplemented: Read as ’0’
745cov.book Page 65 Wednesday, August 2, 2000 8:24 AM
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