STK88C4050 Syntec Semiconductor, STK88C4050 Datasheet - Page 13

• Manufacturer Part Number: STK88C4050
• Description: ROM-less Adpcm Voice Controller.
• Manufacturer: Syntec Semiconductor

00ED
00EE
00EF
(4) Timer definition
00F0
Voice Microcontroller
System clock generator. Write only.
Bit 0: System clock
Reset base timer.
Reserved. Do not use.
Timer Control register. Write only.
Bit 0 : = 0 Disable
Syntek Semiconductor Co., Ltd.
2:
3:
4:
5:
[7:6] : For X’tal option only.
1 : = 0 Disable
2 : = 0 Disable
3 : = 0 Disable
4 : = 0 Disable
5 : = 0
=0
=1
=0 No speed up
=1 Speed up by PLL by shorter timer constant in low pass filter.
=0 low gain for X’tal.
=1 high gain for X’tal
=0 No speed up
=1 Speed up by [5] option
=0 For speed up PLL for 5v mode(about 3.9v release).
=1 For speed up PLL for 3v mode(about 1.5v release)
=01 System clock=32768Hz x 192(by PLL)
=1x System clock=32768Hz x 256(by PLL)
= 1 Enable
= 1 Enable
= 1 Enable
= 1 Enable
= 1 Enable
=00 System clock=32768Hz x 128(by PLL)
Write only.
RC option
4meg:
32k
timer 0.
timer 0.
timer 1.
timer 1.
timer 2.
timer 2.
timer 3.
timer 3.
timer 4.
timer 4.
13/23
X’tal option
Defined by bit 7 & 6
32k
STK88C4050