W78E516DPG Nuvoton Technology Corporation of America, W78E516DPG Datasheet - Page 56

• Manufacturer Part Number: W78E516DPG
• Description: IC MCU 8-BIT 64K FLASH 44-PLCC
• Manufacturer: Nuvoton Technology Corporation of America
• Series: W78r

Specifications of W78E516DPG

• Core Processor: 8052
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: POR, WDT
• Number Of I /o: 36
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

The baud rate generator mode is enabled by setting either the RCLK or TCLK bits in T2CON register.
While in the baud rate generator mode, Timer/Counter 2 is a 16 bit counter with auto reload when the
count rolls over from FFFFh. However, rolling over does not set the TF2 bit. If EXEN2 bit is set, then a
negative transition of the T2EX pin will set EXF2 bit in the T2CON register and cause an interrupt
request.
14.3.3 Baud Rate0 Generator Mode
E X E N 2 = T 2 C O N .3
F o s c
T R 2 = T 2 C O N .2
T 2 E X = P 1 .1
T 2 = P 1 .0
1 /2
0
1
C /T 2 = T 2 C O N .1
Preliminary W78E516D/W78E058D Data Sheet
Figure 14- 6 Baud Rate Generator Mode
RCLK+TCLK=1,
R C A P 2 L
T L 2
- 56 -
T H 2
R C A P 2 H
CP /
RL2
O v e r flo w
T im e r2
=0
T 2 C O N .4
T 2 C O N .6
T C L K =
1
E X F 2
1
T 2 C O N .5
R C L K =
1 /2
0
O v e rflo w
0
0
T im e r1
1
S M O D =
P C O N .7
1 /1 6
1 /1 6
In te rru p t
T im e r2
R x C lo c k
T x C lo c k