PIC18F6621-I/PT Microchip Technology Inc., PIC18F6621-I/PT Datasheet - Page 115

• Manufacturer Part Number: PIC18F6621-I/PT
• Description: 64 PIN, 64 KB FLASH, 3840 RAM, 52 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F6621-I/PT

• A/d Inputs: 12-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 1024 Bytes
• Input Output: 54
• Interface: I2C/SPI/UART/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 64-pin TQFP
• Programmable Memory: 64K Bytes
• Ram Size: 3.8K Bytes
• Speed: 40 MHz
• Timers: 2-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

TABLE 10-7:
TABLE 10-8:
 2005 Microchip Technology Inc.
PORTD
LATD
TRISD
PSPCON
MEMCON
Legend: x = unknown, u = unchanged, — = unimplemented, read as ‘0’. Shaded cells are not used by PORTD.
Note 1:
RD0/AD0
RD1/AD1
RD2/AD2
RD3/AD3
RD4/AD4
RD5/AD5
RD6/AD6
RD7/AD7
Legend: ST = Schmitt Trigger input, TTL = TTL input
Note 1:
Name
2:
2:
Name
(1)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
Enabled only in Microcontroller mode for PIC18F8525/8621 devices.
This register is unused on PIC18F6525/6621 devices and reads as ‘0’.
Input buffers are Schmitt Triggers when in I/O mode and TTL buffers when in System Bus or Parallel
Slave Port mode.
External memory interface functions are only available on PIC18F8525/8621 devices.
/PSP0
/PSP1
/PSP2
/PSP3
/PSP4
/PSP5
/PSP6
/PSP7
LATD Data Output Register
PORTD Data Direction Register
EBDIS
Bit 7
RD7
IBF
PORTD FUNCTIONS
SUMMARY OF REGISTERS ASSOCIATED WITH PORTD
Bit#
bit 0
bit 1
bit 2
bit 3
bit 4
bit 5
bit 6
bit 7
Bit 6
RD6
OBF
—
Buffer Type
WAIT1
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
WAIT0
Bit 4
RD4
PIC18F6525/6621/8525/8621
Input/output port pin, address/data bus bit 0 or Parallel Slave Port bit 0.
Input/output port pin, address/data bus bit 1 or Parallel Slave Port bit 1.
Input/output port pin, address/data bus bit 2 or Parallel Slave Port bit 2.
Input/output port pin, address/data bus bit 3 or Parallel Slave Port bit 3.
Input/output port pin, address/data bus bit 4 or Parallel Slave Port bit 4.
Input/output port pin, address/data bus bit 5 or Parallel Slave Port bit 5.
Input/output port pin, address/data bus bit 6 or Parallel Slave Port bit 6.
Input/output port pin, address/data bus bit 7 or Parallel Slave Port bit 7.
Bit 3
RD3
—
—
Bit 2
RD2
—
—
WM1
Bit 1
RD1
—
Function
WM0
Bit 0
RD0
—
xxxx xxxx
xxxx xxxx
1111 1111
0000 ----
0-00 --00
POR, BOR
Value on
DS39612B-page 113
uuuu uuuu
uuuu uuuu
1111 1111
0000 ----
0-00 --00
Value on
all other
Resets