Datasheet

PIC18F6585/8585/6680/8680
DS30491D-page 148  2003-2013 Microchip Technology Inc.
TABLE 10-15: PORTH FUNCTIONS
TABLE 10-16: SUMMARY OF REGISTERS ASSOCIATED WITH PORTH
Name Bit# Buffer Type Function
RH0/A16 bit 0 ST/TTL
(1)
Input/output port pin or address bit 16 for external memory interface.
RH1/A17 bit 1 ST/TTL
(1)
Input/output port pin or address bit 17 for external memory interface.
RH2/A18 bit 2 ST/TTL
(1)
Input/output port pin or address bit 18 for external memory interface.
RH3/A19 bit 3 ST/TTL
(1)
Input/output port pin or address bit 19 for external memory interface.
RH4/AN12 bit 4 ST Input/output port pin or analog input channel 12.
RH5/AN13 bit 5 ST Input/output port pin or analog input channel 13.
RH6/AN14/P1C
(2)
bit 6 ST Input/output port pin or analog input channel 14.
RH7/AN15/P1B
(2)
bit 7 ST Input/output port pin or analog input channel 15.
Legend: ST = Schmitt Trigger input, TTL = TTL input
Note 1: Input buffers are Schmitt Triggers when in I/O mode and TTL buffers when in System Bus or Parallel Slave
Port mode.
2: Alternate pin assignment when ECCPMX configuration bit is cleared.
Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Value on:
POR, BOR
Value on
all other
Resets
TRISH PORTH Data Direction Control Register
1111 1111 1111 1111
PORTH Read PORTH pin/Write PORTH Data Latch
xxxx xxxx uuuu uuuu
LATH Read PORTH Data Latch/Write PORTH Data Latch
xxxx xxxx uuuu uuuu
ADCON1 — — VCFG1 VCFG0 PCFG3 PCFG2 PCFG1 PCFG0
--00 0000 --00 0000
MEMCON
(1)
EBDIS — WAIT1 WAIT0 — — WM1 WM0
0-00 --00 0-00 --00
Legend: x = unknown, u = unchanged, – = unimplemented. Shaded cells are not used by PORTH.
Note 1: This register is held in Reset in Microcontroller mode.
18F8680.book Page 148 Tuesday, January 29, 2013 1:32 PM