ST92F150JDV1 STMicroelectronics, ST92F150JDV1 Datasheet - Page 131
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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CLOCK MANAGEMENT (Cont’d)
7.3.6 Interrupt Generation
System clock selection modifies the CLKCTL and
CLK_FLAG registers.
The clock control unit generates an external inter-
rupt request (INTD0) in the following conditions:
– when CK_AF and CLOCK2/16 are selected or
Table 27. Summary of Operating Modes using main Crystal Controlled Oscillator
PLL x BY 14
PLL x BY 10
LOW POW-
LOW POW-
PLL x BY 8
PLL x BY 6
EXAMPLE
XTAL=4.4
ER WFI 1
ER WFI 2
deselected as system clock source,
SLOW 1
SLOW 2
SLOW3
RESET
MODE
MHz
WFI
= 11MHz
XTAL/32
XTAL/32
INTCLK
2.2*10/2
x (14/D)
x (10/D)
XTAL/2
XTAL/2
XTAL/2
XTAL/2
XTAL/2
XTAL/2
CK_AF
CK_AF
x (8/D)
x (6/D)
If LPOWFI=0, no changes occur on INTCLK, but CPUCLK is stopped anyway.
ST92F124/F150/F250 - RESET AND CLOCK CONTROL UNIT (RCCU)
CPUCLK DIV2 PRS0-2 CSU_CKSEL MX0-1 DX2-0 LPOWFI
CK_AF/N
INTCLK/
INTCLK/
INTCLK/
INTCLK/
INTCLK/
INTCLK/
INTCLK
11MHz
STOP
STOP
N
N
N
N
N
N
X
1
1
1
1
1
1
1
1
1
1
N-1
N-1
N-1
N-1
N-1
N-1
N-1
X
X
0
0
X
X
X
X
X
1
1
1
1
0
1
– when the system clock restarts after a hardware
– when the PLL loses the programmed frequency
This interrupt can be masked by resetting the
INT_SEL bit in the CLKCTL register. Note that this
is the only case in the ST9 where an interrupt is
generated with a high to low transition.
stop (when the STOP MODE feature is availa-
ble on the specific device).
in which it was locked, and when it re-locks
1 0
0 0
1 1
0 1
00
00
X
X
X
X
X
111
111
001
D-1
D-1
D-1
D-1
X
X
X
X
X
X
X
X
X
X
X
X
1
1
0
WFI_CK
SEL
X
X
X
X
X
X
X
0
1
0
XT_DIV16
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X
X
X
1
1
1
1
1
0
1
1
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