STEVAL-ISQ002V1 STMicroelectronics, STEVAL-ISQ002V1 Datasheet - Page 163

• Manufacturer Part Number: STEVAL-ISQ002V1
• Description: BOARD EVAL BASED ON ST72264G1
• Manufacturer: STMicroelectronics

Specifications of STEVAL-ISQ002V1

• Main Purpose: Interface, PMBus
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: ST72F264
• Primary Attributes: The PMBus™ Interface Using the ST7 I2C Peripheral
• Secondary Attributes: Firmware in C Language
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-6423

DEVICE CONFIGURATION (Cont’d)
OPT 0 = FMP_W FLASH write protection
This option indicates if the FLASH program mem-
ory is write protected.
Warning: When this option is selected, the pro-
gram memory (and the option bit itself) can never
be erased or programmed again.
0: Write protection off
1: Write protection on
USER OPTION BYTE 1
OPT 7 = EXTIT Port C External Interrupt Configu-
ration.
This option bit allows the Port C external interrupt
mapping to be configured as ei0 or ei1.
Table 27. External Interrupt Configuration
OPT 6 = Reserved, must be kept at default value.
OPT 5:4 = OSCTYPE[1:0] Oscillator Type selec-
tion
These option bits select the Oscillator Type.
Resonator Oscillator
Reserved
Internal RC Oscillator
External Source
PC[5:0] Ports
PA[7:0] Ports
PA[7:0] Ports
Clock Source
ei0
PC[5:0] Ports
PB[7:0] Ports
PB[7:0] Ports
OSCTYPE1 OSCTYPE0
ei1
0
1
0
1
option
EXTIT
0
1
0
1
bit
1
0
OPT 3:1 = OSCRNGE[2:0] Oscillator Range se-
lection
These option bits select the oscillator range.
OPT 0 = PLL PLL selection
This option bit selects the PLL which allows multi-
plication by two of the oscillator frequency. The
PLL must not be used with the internal RC oscilla-
tor. It is guaranteed only with a f
cy between 2 and 4MHz.
0: PLL x2 enabled
1: PLL x2 disabled
CAUTION: the PLL can be enabled only if the
“OSC RANGE” (OPT3:1) bits are configured to
“MP - 2~4MHz”. Otherwise, the device functionali-
ty is not guaranteed.
Typ. Freq. Range
VLP 32~100kHz
LP
MP
MS
HS
ST72260Gx, ST72262Gx, ST72264Gx
8~16MHz
1~2MHz
2~4MHz
4~8MHz
RNGE2
OSC
1
0
0
0
0
RNGE1
OSC
OSC
x
0
0
1
1
input frequen-
RNGE0
OSC
163/172
0
1
0
1
x
1