PIC18F27J53T-I/SO Microchip Technology, PIC18F27J53T-I/SO Datasheet - Page 283

• Manufacturer Part Number: PIC18F27J53T-I/SO
• Description: 28-pin, USB, 128KB Flash, 4KB RAM, 12 MIPS, 12-bit ADC, NanoWatt XLP 28 SOIC .30
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of PIC18F27J53T-I/SO

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: I²C, LIN, SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 128KB (64K x 16)
• Program Memory Type: FLASH
• Ram Size: 3.8K x 8
• Voltage - Supply (vcc/vdd): 2.15 V ~ 3.6 V
• Data Converters: A/D 10x10b/12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 3.8 KB
• Interface Type: I2C, SPI, USART
• Maximum Clock Frequency: 48 MHz
• Number Of Programmable I/os: 16
• Number Of Timers: 8
• Operating Supply Voltage: 2.15 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

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
Note 1: The auto-shutdown condition is a level-based signal, not an edge-based signal. As long as the level is
R/W-0
2: Writing to the ECCPxASE bit is disabled while an auto-shutdown condition persists.
3: Once the auto-shutdown condition has been removed and the PWM restarted (either through firmware or
present, the auto-shutdown will persist.
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>: PxA and PxC Pins Shutdown State Control bits
00 = Drive pins, PxA and PxC, to ‘0’
01 = Drive pins, PxA and PxC, to ‘1’
1x = PxA and PxC pins tri-state
PSSxBD<1:0>: PxB and PxD Pins Shutdown State Control bits
00 = Drive pins, PxB and PxD, to ‘0’
01 = Drive pins, PxB and PxD, to ‘1’
1x = PxB and PxD pins tri-state
ECCPxAS2
R/W-0
ECCPxAS: ECCP1/2/3 AUTO-SHUTDOWN CONTROL REGISTER (1, ACCESS
FBEh; 2, FB8h; 3, BANKED F19h)
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 or 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
PSSxAC1
PIC18F47J53 FAMILY
R/W-0
Each pin pair may be placed into one of three states:
• Drive logic ‘1’
• Drive logic ‘0’
• Tri-state (high-impedance)
(PxB/PxD). The state of each pin pair is deter-
mined by the PSSxAC and PSSxBD bits
(ECCPxAS<3:0>).
PSSxAC0
R/W-0
x = Bit is unknown
PSSxBD1
R/W-0
DS39964B-page 283
PSSxBD0
R/W-0
bit 0