ST92T163 ST Microelectronics, ST92T163 Datasheet - Page 83

• Manufacturer Part Number: ST92T163
• Description: 8/16-BIT FULL SPEED USB MCU FOR COMPOSITE DEVICES WITH 16 ENDPOINTS
• Manufacturer: ST Microelectronics

PLL CONFIGURATION REGISTER (PLLCONF)
R246 - Read/Write
Register Page: 55
Reset Value: xx00 x111
Bit 7:6 = Reserved.
Bit 5:4 = MX[1:0]: PLL Multiplication Factor .
Refer to Table 14 for multiplier settings.
Bit 3 = Reserved.
Bit 2:0 = DX[2:0]: PLL output clock divider factor.
Refer to Table 15 for divider settings.
Figure 39. RCCU General Timing
7
-
-
(**) +/- 1 T
(*) if DIV2 =1
Multiplier
MX1 MX0
External
RESET
Internal
INTCLK
clock
reset
STOP
clock
Xtal
pin
Xtal
-
((N-1)*512+510)xT
DX2
PLL turned on by user
ST92163 - RESET AND CLOCK CONTROL UNIT (RCCU)
DX1
Exit from RESET
Xtal
DX0
(**)
0
Xtal/2
Lock-in
Table 14. PLL Multiplication Factors
Table 15. Divider Configuration
time
PLL
DX2
0
0
0
0
1
1
1
1
MX1
Acknowledged
1
0
1
0
PLL
4 xT
PLL selected by user
STOP
sys
DX1
0
0
1
1
0
0
1
1
start-up
Quartz
MX0
510 x T
0
0
1
1
DX0
0
1
0
1
0
1
0
1
Xtal
(*)
Lock-in
(PLL OFF, Reset State)
Xtal/2
PLL
time
PLL CLOCK/1
PLL CLOCK/2
PLL CLOCK/3
PLL CLOCK/4
PLL CLOCK/5
PLL CLOCK/6
PLL CLOCK/7
CLOCK2 x
PLL clock
PLL
Switch to
CLOCK2
CK
14
10
8
6
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