PIC18F86K90-I/PT Microchip Technology, PIC18F86K90-I/PT Datasheet - Page 263

• Manufacturer Part Number: PIC18F86K90-I/PT
• Description: 64kB Flash, 4kB RAM, 1kB EE, 16MIPS, NanoWatt XLP, LCD, 5V 80 TQFP 12x12x1mm TRA
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of PIC18F86K90-I/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 64MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 69
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 24x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

When a shutdown event occurs, two things happen:
• The ECCPxASE bit is set to ‘1’. The ECCPxASE
• The enabled PWM pins are asynchronously
REGISTER 19-3:
 2010 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6-4
bit 3-2
bit 1-0
ECCPxASE
will remain set until cleared in firmware or an
auto-restart occurs. (See Section 19.4.5
“Auto-Restart Mode”.)
placed in their shutdown states. The PWM output
pins are grouped into pairs: PxA/PxC and
PxB/PxD. The state of each pin pair is determined
by the PSSxAC and PSSxBD bits
(ECCPxAS<3:2> and <1:0>, respectively).
Note:
R/W-0
The auto-shutdown condition is a level-based signal, not an edge-based signal. As long as the level is
present, the auto-shutdown will persist.
Writing to the ECCPxASE bit is disabled while an auto-shutdown condition persists. Once the
auto-shutdown condition has been removed and the PWM restarted (either through firmware or
auto-restart), the PWM signal will always restart at the beginning of the next PWM period.
ECCPxASE: ECCP Auto-Shutdown Event Status bit
1 = A shutdown event has occurred; ECCP outputs are in a shutdown state
0 = ECCP outputs are operating
ECCPxAS<2:0>: ECCP Auto-Shutdown Source Select bits
000 = Auto-shutdown is disabled
001 = Comparator C1OUT output is high
010 = Comparator C2OUT output is high
011 = Either Comparator C1OUT or C2OUT is high
100 = V
101 = V
110 = V
111 = V
PSSxAC<1:0>: Pins PxA and PxC Shutdown State Control bits
00 = Drive the PxA and PxC pins to ‘0’
01 = Drive the PxA and PxC pins to ‘1’
1x = PxA and PxC pins tri-state
PSSxBD<1:0>: Pins PxB and PxD Shutdown State Control bits
00 = Drive the PxB and PxD pins to ‘0’
01 = Drive the PxB and PxD pins to ‘1’
1x = PxB and PxD pins tri-state
ECCPxAS2
R/W-0
ECCPxAS: ECCPx AUTO-SHUTDOWN CONTROL REGISTER
IL
IL
IL
IL
on FLT0 pin
on FLT0 pin or Comparator C1OUT output is high
on FLT0 pin or Comparator C2OUT output is high
on FLT0 pin, Comparator C1OUT or Comparator C2OUT is high
W = Writable bit
‘1’ = Bit is set
ECCPxAS1
R/W-0
ECCPxAS0
R/W-0
Preliminary
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
PIC18F87K90 FAMILY
PSSxAC1
R/W-0
Each pin pair may be placed into one of three states:
• Drive logic ‘1’
• Drive logic ‘0’
• Tri-state (high-impedance)
PSSxAC0
R/W-0
x = Bit is unknown
PSSxBD1
R/W-0
DS39957B-page 263
PSSxBD0
R/W-0
bit 0