PIC17C756-16/SP Microchip Technology, PIC17C756-16/SP Datasheet - Page 69

• Manufacturer Part Number: PIC17C756-16/SP
• Description: MICRO CTRL 16K MEMORY OTP 64SDIP
• Manufacturer: Microchip Technology
• Series: PIC® 17Cr

Specifications of PIC17C756-16/SP

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 50
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: OTP
• Ram Size: 902 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 6 V
• Data Converters: A/D 12x10b
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 64-SDIP (0.750", 19.05mm)
• Lead Free Status / RoHS Status: Request inventory verification / Request inventory verification
• Eeprom Size: -
• Other names: PIC17C756-16/P

Example 10-2 shows an instruction sequence to initial-
ize PORTB. The Bank Select Register (BSR) must be
selected to Bank 0 for the port to be initialized. The fol-
lowing example uses the MOVLB instruction to load the
BSR register for bank selection.
FIGURE 10-6: BLOCK DIAGRAM OF RB3:RB2 PORT PINS
1997 Microchip Technology Inc.
Note: I/O pins have protection diodes to V
Weak
Pull-Up
OE
DD
and Vss.
Port
Input Latch
Port
Data
Preliminary
Q
EXAMPLE 10-2: INITIALIZING PORTB
MOVLB
CLRF
MOVLW
MOVWF
CK
D
PORTB
0xCF
DDRB
0
; Select Bank 0
; Initialize PORTB by clearing
;
; Value used to initialize
;
; Set RB<3:0> as inputs
;
;
Match Signal
from other
port pins
Q
output data latches
data direction
R
RB<5:4> as outputs
RB<7:6> as inputs
CK
D
RBPU
Peripheral Data in
DS30264A-page 69
Peripheral_enable
WR_PORTB (Q4)
Peripheral_output
RD_PORTB (Q2)
WR_DDRB (Q4)
RD_DDRB (Q2)
(PORTA<7>)
Data Bus
RBIF