STEVAL-ISB005V1 STMicroelectronics, STEVAL-ISB005V1 Datasheet - Page 94

• Manufacturer Part Number: STEVAL-ISB005V1
• Description: BOARD EVAL CHARGER ST7260/L6924D
• Manufacturer: STMicroelectronics
• Type: Battery Managementr

Specifications of STEVAL-ISB005V1

• Main Purpose: Power Management, Battery Charger
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: L6924, ST72F63BK6M1
• Primary Attributes: 1 Cell- Li-Ion / Li-Pol, 5 V (USB Input)
• Secondary Attributes: Powered by Wall Adaptor Also, LED Status Indicators
• Input Voltage: 5 V
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: L6924D, ST7260
• Other names: 497-8428

USB interface (USB)
14.4.6
Note:
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Control register (CTLR)
Bits 7:4 = Reserved. Forced by hardware to 0.
Bit 3 = RESUME Resume.
This bit is set by software to wake-up the Host when the ST7 is in suspend mode.
0: Resume signal not forced
1: Resume signal forced on the USB bus.
Software should clear this bit after the appropriate delay.
Bit 2 = PDWN Power down.
This bit is set by software to turn off the 3.3V on-chip voltage regulator that supplies the
external pull-up resistor and the transceiver.
0: Voltage regulator on
1: Voltage regulator off
After turning on the voltage regulator, software should allow at least 3 µs for stabilisation of
the power supply before using the USB interface.
Bit 1 = FSUSP Force suspend mode.
This bit is set by software to enter Suspend mode. The ST7 should also be halted allowing
at least 600 ns before issuing the HALT instruction.
0: Suspend mode inactive
1: Suspend mode active
When the hardware detects USB activity, it resets this bit (it can also be reset by software).
Bit 0 = FRES Force reset.
This bit is set by software to force a reset of the USB interface, just as if a RESET sequence
came from the USB.
0: Reset not forced
1: USB interface reset forced.
The USB is held in RESET state until software clears this bit, at which point a “USB-RESET”
interrupt will be generated if enabled.
CTLR
R/W
7
0
R/W
6
0
R/W
5
0
R/W
4
0
RESUME
R/W
3
PDWN
R/W
2
Reset value:
FSUSP
R/W
1
0000 0110 (06h)
ST7260xx
FRES
R/W
0