Hadaru HPM103H-6 User Manual - page 9
CONFIDENTIAL 9
페이지
2005-06-08
36 GPIO9
I/O
RTC Chip Control (SDA)
37 GPIO8
I/O
RTC Chip Control (SCL)
38 GPIO11
I/O Wake-UP
(1)
Notes:
(1): The base-band processor uN8031 includes a keeper so that no external pull
down or pull up resistor is needed. VIH min = 0.7 x VBB, VIL max = 0.3
x VBB. When the GPIO is configured as an input (e.g. External Wake-up
GPIO11), the drive impedance should be less than 10kohm in order to
change the state.
(2): HPM103H-6 module contains internal 100k pull up resistor to VCC. VIH min =
0.7 x VCC, VIL max = 0.3 x VCC. The base-band processor uN8031
includes also a keeper and the drive impedance should be less than
10kohm in order to change the state.
(3): The base-band processor uN8031 includes an internal 100k pull up resistor to
VCC (no keeper). VIH min = 0.7 x VCC, VIL max = 0.3 x VCC.
(4): HPM103H-6 module contains internal 10k pull up resistor to VCC. VIH min =
0.7 x VCC, VIL max = 0.3 x VCC.
(5): The base-band processor uN8031 includes an internal 10k pull up resistor to
VCC (no keeper). VIH min = 0.7 x VCC, VIL max = 0.3 x VCC.
Some of the inputs of the uN8031 include a pull-up or a pull-down resistor or a keeper;
therefore external resistors to the HPM103H-6 are not required. Unused pins can be
left unconnected.
HPM103H-6