PIC16C765-I/P Microchip Technology, PIC16C765-I/P Datasheet - Page 60

• Manufacturer Part Number: PIC16C765-I/P
• Description: IC MCU OTP 8KX14 USB 40DIP
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C765-I/P

• Core Size: 8-Bit
• Program Memory Size: 14KB (8K x 14)
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Core Processor: PIC
• Speed: 24MHz
• Connectivity: SCI, UART/USART, USB
• Number Of I /o: 33
• Program Memory Type: OTP
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4.35 V ~ 5.25 V
• Data Converters: A/D 8x8b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Controller Family/series: PIC16C
• No. Of I/o's: 33
• Ram Memory Size: 256Byte
• Cpu Speed: 24MHz
• No. Of Timers: 3
• Processor Series: PIC16C
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Maximum Clock Frequency: 24 MHz
• Number Of Programmable I/os: 33
• Number Of Timers: 3
• Operating Supply Voltage: 4.35 V to 5.25 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: ICE2000, DM163022
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 5 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: ISPICR1 - ADAPTER IN-CIRCUIT PROGRAMMING444-1001 - DEMO BOARD FOR PICMICRO MCU
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: Q975613

PIC16C745/765
10.5
The USB Control Registers, Buffer Descriptors and
Buffers are located in Bank 3.
10.5.1
The USB module is controlled by 7 registers, plus
those that control each endpoint and endpoint/
direction buffer.
REGISTER 10-1: USB INTERRUPT FLAGS REGISTER (UIR: 190h)
DS41124C-page 60
bit7
bit 7-6: Unimplemented: Read as '0'
bit 5:
bit 4:
bit 3:
bit 2:
bit 1:
bit 0:
Note 1: Bits can only be modified when UCTRL.SUSPND = 0.
U-0
—
USB Register Map
CONTROL AND STATUS REGISTERS
timer is reset by activity on the USB bus. Once a IDLE condition has been detected, the user may wish
to place the USB module in SUSPEND by setting the SUSPEND bit in the UCTRL register.
should immediately read the USTAT register to determine the Endpoint number and direction used for
this token. Clearing this bit causes the USTAT register to be cleared or the USTAT holding register to be
loaded into the STAT register if another token has been processed.
following detection of SLEEP. Users must enable the activity interrupt in the USB Interrupt Register
(UIE: 191h) prior to entering suspend.
MCU must then read the ERR_STAT register to determine the source of the error.
write 00h into the address register and enable endpoint 0. USB_RST is set once a USB Reset has been
detected for 2.5 microseconds. It will not be asserted again until the USB Reset condition has been
removed, and then reasserted.
STALL: A STALL handshake was sent by the SIE
UIDLE: This bit is set if the USB has detected a constant idle on the USB bus signals for 3 ms. The idle
TOK_DNE: This bit is set when the current token being processed is complete. The microprocessor
ACTIVITY: Activity on the D+/D- lines will cause the SIE to set this bit. Typically this bit is unmasked
UERR: This bit is set when any of the error conditions within the ERR_STAT register has occurred. The
USB_RST: This bit is set when the USB has decoded a valid USB Reset. This will inform the MCU to
U-0
—
STALL
R/C-0
UIDLE TOK_DNE ACTIVITY
R/C-0
R/C-0
Preliminary
R/C-0
10.5.1.1
The USB Interrupt Status Register (UIR) contains flag
bits for each of the interrupt sources within the USB.
Each of these bits are qualified with their respective
interrupt enable bits (see the Interrupt Enable Register
UIE). All bits of the register are logically OR’ed
together to form a single interrupt source for the micro-
processor interrupt found in PIR1 (USBIF). Once an
interrupt bit has been set, it must be cleared by writing
a zero.
UERR
R/C-0
USB Interrupt Register (UIR)
USB_RST
R/C-0
bit0
R = Readable bit
C = Clearable bit
U = Unimplemented bit,
-n = Value at POR reset
2000 Microchip Technology Inc.
read as ‘0’