Справочник Пользователя для ZBA Inc. BT44-291S
BT44-291S
Page 4 of 18
PIO Port
PIN
TYPE
DESCRIPTION
Pio0 43
Pio1 42
Pio2 41
Pio3 40
Programmable input/output line
Pio4 39
Programmable input/output line or
Optionally BT_Priority/Ch_Clk
output for co-existence signalling
Pio5 38
Programmable input/output line or
Optionally BT_Active output for
co-existence signalling
Pio6 37
Programmable input/output line or
Optionally WLAN_Active/Ch_Data
input for co-existence signalling
Pio7 36
Pio8 44
Pio9 45
Pio10 46
Pio11 2
Bi-directional with programmable
strength internal pull-up/down
Programmable input/output line
Aio0 4
Aio1 3
Aio2 5
Bi-directional
Programmable input/output line
External Memory
Data Interface
PIN TYPE
DESCRIPTION
D15
～
D0
18
～
33
Bi-directional with weak internal
pull-down
Data line
D15 to 18.
Test and Debug
PIN
TYPE
DESCRIPTION
RST 6
CMOS input with weak internal
pull-up
internal pull-up Reset if low. Input
debounced so must be low for >5ms to
cause a reset
MISO
7
CMOS output, tri-state, with weak
internal pull-down
Serial Peripheral Interface data output
CSB
8
CMOS input with weak internal
pull-up
Chip select for Synchronous Serial
Interface active low
SCLK
9
CMOS input with weak internal
pull-down
Serial Peripheral Interface clock
MOSI
10
CMOS input with weak internal
pull-down
Serial Peripheral Interface data input
Power Supplies and
PIN
TYPE
DESCRIPTION