PIC18F44J50-I Datasheet, PDF (170/562 Pages) Microchip Technology – 28/44-Pin, Low-Power, High-Performance USB Microcontrollers

PIC18F46J50 FAMILY
11.1 Module Registers
The PMP module has a total of 14 Special Function
Registers (SFRs) for its operation, plus one additional
register to set configuration options. Of these, eight
registers are used for control and six are used for PMP
data transfer.
11.1.1 CONTROL REGISTERS
The eight PMP Control registers are:
• PMCONH and PMCONL
• PMMODEH and PMMODEL
• PMSTATL and PMSTATH
• PMEH and PMEL
The PMCON registers (Register 11-1 and
Register 11-2) control basic module operations, includ-
ing turning the module on or off. They also configure
address multiplexing and control strobe configuration.
The PMMODE registers (Register 11-3 and
Register 11-4) configure the various Master and Slave
modes, the data width and interrupt generation.
The PMEH and PMEL registers (Register 11-5 and
Register 11-6) configure the module’s operation at the
hardware (I/O pin) level.
The PMSTAT registers (Register 11-5 and
Register 11-6) provide status flags for the module’s
input and output buffers, depending on the operating
mode.
REGISTER 11-1: PMCONH: PARALLEL PORT CONTROL REGISTER HIGH BYTE (BANKED F5Fh)⁽¹⁾
R/W-0
U-0
PMPEN
—
bit 7
U-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
—
ADRMUX1 ADRMUX0 PTBEEN PTWREN PTRDEN
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
bit 6-5
bit 4-3
bit 2
bit 1
bit 0
PMPEN: Parallel Master Port Enable bit
1 = PMP is enabled
0 = PMP is disabled, no off-chip access is performed
Unimplemented: Read as ‘0’
ADRMUX<1:0>: Address/Data Multiplexing Selection bits
11 = Reserved
10 = All 16 bits of the address are multiplexed on PMD<7:0> pins
01 = Lower 8 bits of the address are multiplexed on PMD<7:0> pins (only eight bits of address are
available in this mode)
00 = Address and data appear on separate pins (only eight bits of address are available in this mode)
PTBEEN: Byte Enable Port Enable bit (16-Bit Master mode)
1 = PMBE port is enabled
0 = PMBE port is disabled
PTWREN: Write Enable Strobe Port Enable bit
1 = PMWR/PMENB port is enabled
0 = PMWR/PMENB port is disabled
PTRDEN: Read/Write Strobe Port Enable bit
1 = PMRD/PMWR port is enabled
0 = PMRD/PMWR port is disabled
Note 1: This register is only available on 44-pin devices.
DS39931D-page 170
 2011 Microchip Technology Inc.