MB90440G Series
8
DS07-13716-3E
(Continued)
Pin No.
Pin name
Circuit type
Function
14
P34
H
General I/O port with programmable pullup. This function is enabled
in the single-chip mode or when hold function is disabled.
HRQ
Hold request input pin. This function is enabled when the external
bus is in enable mode and the hold function is enabled.
15
P35
H
General I/O port with programmable pullup. This function is enabled
in the single-chip mode or when hold function is disabled.
HAK
Hold acknowledge output pin. This function is enabled when the ex-
ternal bus is in enable mode and the hold function is enabled.
16
P36
H
General I/O port with programmable pullup. This function is enabled
in the single-chip mode or when the external ready function is dis-
abled.
RDY
Ready input pin. This function is enabled when the external bus is
in enable mode and the external ready function is enabled.
17
P37
H
General I/O port with programmable pullup. This function is enabled
in the single-chip mode or when CLK output is disabled.
CLK
CLK output pin. This function is enabled when the external bus is in
enable mode and CLK output is enabled.
18
P40
G
General I/O port. This function is enabled when serial data output
of UART0 is disabled.
SOT0
Serial data output pin for UART0. This function is enabled when
UART0 enables serial data output.
19
P41
G
General I/O port. This function is enabled when clock output of
UART0 is disabled.
SCK0
Serial clock I/O pin for UART0. This function is enabled when
UART0 enables serial clock output.
20
P42
G
General I/O port. This function is always enabled.
SIN0
Serial data input pin for UART0. Set the corresponding DDR regis-
ter to input if this function is used.
21
P43
G
General I/O port. This function is always enabled.
SIN1
Serial data input pin for UART1. Set the corresponding DDR regis-
ter to input if this function is used.
22
P44
G
General I/O port. This function is enabled when serial clock output
of UART1 is disabled.
SCK1
Serial clock I/O pin for UART1. This function is enabled when
UART1 enables serial clock output.
24
P45
G
General I/O port. This function is enabled when serial data output
of UART1 is disabled.
SOT1
Serial data output pin for UART1. This function is enabled when
UART1 enables serial data output.