saa5647hl NXP Semiconductors, saa5647hl Datasheet - Page 25

• Manufacturer Part Number: saa5647hl
• Description: Saa56xx Enhanced Tv Microcontrollers With On-screen Display Osd
• Manufacturer: NXP Semiconductors

Philips Semiconductors
2004 Sep 03
Timer/counter2 Control Register (T2CON)
TF2
EXF2
RCLK0
TCLK0
EXEN2
TR2
C/T2
CP/RL2
14-bit PWM MSB Register (TDACH)
TPWE
TD13 to TD8
14-bit PWM LSB Register (TDACL)
TD7 to TD0
Timer 0 High byte (TH0)
TH07 to TH00
Timer 1 High byte (TH1)
TH17 to TH10
Timer 2 High byte (TH2)
TH27 to TH20
Timer 0 Low byte (TL0)
TL07 to TL00
Timer 1 Low byte (TL1)
TL17 to TL10
Timer 2 Low byte (TL2)
TL27 to TL20
Enhanced TV microcontrollers with
On-Screen Display (OSD)
BITS
Timer 2 overflow flag. Cleared by software. TF2 will not be set when either
baud rate generation mode or clock out mode.
Timer 2 External Flag. Set on a negative transition on T2EX and EXEN2 = 1. In
Auto-reload mode it is toggled on an under or overflow. Cleared by software.
Receive clock 0 flag. When set, causes the UART to use Timer 2 overflow
pulses. RCLK0 = 0 causes Timer 1 overflow pulses to be used.
Transmit clock 0 flag. When set, causes the UART to use Timer 2 overflow
pulses. TCLK0 = 0 causes Timer 1 overflow pulses to be used.
Timer 2 external enable flag. When set, allows a capture or reload to occur,
together with an interrupt, as a result of a negative transition on input T2EX if in
capture mode or Auto-reload mode with DCEN reset. If in Auto-reload mode and
DCEN is set, this bit has no influence. In the other modes, EXF2 is set and an
interrupt is generated on a HIGH-to-LOW transition on T2EX pin. In all modes,
EXEN2 = 0 causes Timer 2 to ignore events at T2EX.
START/STOP control bit. A logic 1 starts Timer 2.
Counter Timer selection bit. A logic 1 selects the counter for Timer 2.
Capture/Reload flag. Selection of mode capture or reload.
activate this 14-bit PWM (logic 1)
6 MSBs of 14-bit number to be output by the 14-bit PWM
8 LSBs of 14-bit number to be output by the 14-bit PWM
8 MSBs of Timer 0 16-bit counter
8 MSBs of Timer 1 16-bit counter
8 MSBs of Timer 2 16-bit counter
8 LSBs of Timer 0 16-bit counter
8 LSBs of Timer 1 16-bit counter
8 LSBs of Timer 2 16-bit counter
25
FUNCTION
Product specification
SAA56xx