Datasheet

PIC24FJ256GA110 FAMILY
DS30009905F-page 290  2007-2019 Microchip Technology Inc.
FIGURE 28-8: UART BAUD RATE GENERATOR OUTPUT TIMING
FIGURE 28-9: UART START BIT EDGE DETECTION
TABLE 28-21: UART SPECIFICATIONS
AC CHARACTERISTICS
Standard Operating Conditions: 2.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C  T
A  +85°C for Industrial
Symbol Characteristics Min Typ Max Units
T
LW BCLKx High Time 20 TCY/2 — ns
THW BCLKx Low Time 20 (TCY * BRGx) + TCY/2 — ns
T
BLD BCLKx Falling Edge Delay from UxTX -50 — 50 ns
TBHD BCLKx Rising Edge Delay from UxTX TCY/2 – 50 — TCY/2 + 50 ns
T
WAK Min. Low on UxRX Line to Cause Wake-up — 1 — ms
T
CTS Min. Low on UxCTS Line to Start
Transmission
TCY ——ns
T
SETUP Start Bit Falling Edge to System Clock Rising
Edge Setup Time
3— —ns
T
STDELAY Maximum Delay in the Detection of the
Start Bit Falling Edge
——TCY + TSETUP ns
BCLKx
UxTX
T
BLD
TBHD
BRGx + 1 * TCY TLW THW
BRGx
Cycle
Clock
UxRX
Any Value
T
STDELAY
TSETUP
TCY
Start Bit Detected, BRGx Started