PIC16C63A-04E/SO Microchip Technology, PIC16C63A-04E/SO Datasheet - Page 34

• Manufacturer Part Number: PIC16C63A-04E/SO
• Description: IC MCU OTP 4KX14 PWM 28SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C63A-04E/SO

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 4MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 7KB (4K x 14)
• Program Memory Type: OTP
• Ram Size: 192 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

PIC16C63A/65B/73B/74B
5.4
PORTD is an 8-bit port with Schmitt Trigger input buff-
ers. Each pin is individually configured as an input or
output.
PORTD can be configured as an 8-bit wide micropro-
cessor port (parallel slave port) by setting control bit
PSPMODE (TRISE<4>). In this mode, the input buffers
are TTL.
TABLE 5-7:
TABLE 5-8:
DS30605C-page 34
Name
RD0/PSP0
RD1/PSP1
RD2/PSP2
RD3/PSP3
RD4/PSP4
RD5/PSP5
RD6/PSP6
RD7/PSP7
Legend:
Note 1: Input buffers are Schmitt Triggers when in I/O mode and TTL buffer when in Parallel Slave Port mode.
Address
08h
88h
89h
Legend: x = unknown, u = unchanged, - = unimplemented, read as '0'. Shaded cells are not used by PORTD.
Note:
PORTD and TRISD Registers
ST = Schmitt Trigger input, TTL = TTL input
PORTD
TRISD
TRISE
The PIC16C63A and PIC16C73B do not
provide PORTD. The PORTD and TRISD
registers are not implemented.
Name
Bit#
SUMMARY OF REGISTERS ASSOCIATED WITH PORTD
PORTD FUNCTIONS
bit0
bit1
bit2
bit3
bit4
bit5
bit6
bit7
PORTD Data Direction register
Bit 7
RD7
IBF
Bit 6
RD6
OBF
Buffer Type
ST/TTL
ST/TTL
ST/TTL
ST/TTL
ST/TTL
ST/TTL
ST/TTL
ST/TTL
IBOV
Bit 5
RD5
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
PSPMODE
Bit 4
RD4
Function
Input/output port pin or parallel slave port bit0
Input/output port pin or parallel slave port bit1
Input/output port pin or parallel slave port bit2
Input/output port pin or parallel slave port bit3
Input/output port pin or parallel slave port bit4
Input/output port pin or parallel slave port bit5
Input/output port pin or parallel slave port bit6
Input/output port pin or parallel slave port bit7
Bit 3
RD3
—
PORTE Data Direction bits
FIGURE 5-6:
Bit 2
RD2
Note 1: I/O pins have protection diodes to V
WR
TRIS
Data
Bus
WR
Port
RD Port
Bit 1
RD1
Data Latch
TRIS Latch
D
D
CK
CK
RD TRIS
Q
Bit 0
RD0
Q
PORTD BLOCK DIAGRAM
2000 Microchip Technology Inc.
Q
xxxx xxxx
1111 1111
0000 -111
Value on:
POR,
EN
BOR
Schmitt
Trigger
Input
Buffer
EN
D
DD
uuuu uuuu
1111 1111
0000 -111
Value on
I/O pin
RESETS
all other
and V
(1)
SS
.