ST92F150JDV1 STMicroelectronics, ST92F150JDV1 Datasheet - Page 136
ST92F150JDV1
Manufacturer Part Number
ST92F150JDV1
Description
8-bit MCU
Manufacturer
STMicroelectronics
Datasheet
1.ST92F150CR1.pdf
(429 pages)
Specifications of ST92F150JDV1
Internal Memory
Single Voltage FLASH up to 256 Kbytes, RAM up to 8Kbytes, 1K byte E3 (Emulated EEPROM)
Minimum Instruction Time
83 ns (24 MHz int. clock)
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ST92F124/F150/F250 - RESET AND CLOCK CONTROL UNIT (RCCU)
CLOCK CONTROL REGISTERS (Cont’d)
PLL CONFIGURATION REGISTER (PLLCONF)
R246 - Read/Write
Register Page: 55
Reset Value: 0x00 x111
Bit 7 = FREEN: PLL Free Running Mode Enable
0: PLL Free Running Mode disabled
1: PLL Free Running Mode enabled
When this bit is set, even if the DX[2:0] bits are all
set to 1, the PLL is not stopped but provides a slow
frequency back-up clock, selectable by the
CSU_CKSEL bit of the CLK_FLAG register (with-
out needing to have the LOCK bit equal to ‘1’).
Bits 5:4 = MX[1:0]: PLL Multiplication Factor.
Refer to
WARNING: After these bits are modified, take
care that the PLL lock-in time has elapsed before
setting the CSU_CKSEL bit in the CLK_FLAG reg-
ister.
Bits 2:0 = DX[2:0]: PLL output clock divider factor.
Refer to
136/429
9
FREEN
7
Table 29
Table 30
0
MX1
for multiplier settings.
for divider settings.
MX0
0
DX2
DX1
DX0
0
Table 29. PLL Multiplication Factors
Table 30. PLL Divider Factors
DX2
0
0
0
0
1
1
1
1
MX1
1
0
1
0
DX1
0
0
1
1
0
0
1
1
MX0
0
0
1
1
DX0
0
1
0
1
0
1
0
1
(PLL OFF, Reset State)
PLL CLOCK/1
PLL CLOCK/2
PLL CLOCK/3
PLL CLOCK/4
PLL CLOCK/5
PLL CLOCK/6
PLL CLOCK/7
CLOCK2 x
CLOCK2
CK
14
10
8
6
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