MB90F543 データシートの表示（PDF） - Fujitsu
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MB90F543 Datasheet PDF : 67 Pages
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MB90540/540G/545/545G Series
Pin No.
LQFP*2 QFP*1
Pin name
11
13
P33
WRH
12
14
13
15
14
16
15
17
16
18
17
19
18
20
19
21
P34
HRQ
P35
HAK
P36
RDY
P37
CLK
P40
SOT0
P41
SCK0
P42
SIN0
P43
SIN1
10
Circuit
type
I
I
I
I
H
G
G
G
G
Function
General I/O port with programmable pullup. This function is
enabled in the single-chip mode, external bus 8-bit mode or
when WRH pin output is disabled.
Write strobe output pin for the 8 higher bits of the data bus.
This function is enabled when the external bus is enabled,
when the external bus 16-bit mode is selected, and when the
WRH output pin is enabled.
General I/O port with programmable pullup. This function is
enabled in the single-chip mode or when the hold function is
disabled.
Hold request input pin. This function is enabled when both the
external bus and the hold functions are enabled.
General I/O port with programmable pullup. This function is
enabled in the single-chip mode or when the hold function is
disabled.
Hold acknowledge output pin. This function is enabled when
both the external bus and the hold functions are enabled.
General I/O port with programmable pullup. This function is
enabled in the single-chip mode or when the external ready
function is disabled.
Ready input pin. This function is enabled when both the
external bus and the external ready functions are enabled.
General I/O port with programmable pullup. This function is
enabled in the single-chip mode or when the CLK output is dis-
abled.
CLK output pin. This function is enabled when both the
external bus and CLK outputs are enabled.
General I/O port. This function is enabled when UART0
disables the serial data output.
Serial data output pin for UART0. This function is enabled
when UART0 enables the serial data output.
General I/O port. This function is enabled when UART0
disables serial clock output.
Serial clock I/O pin for UART0. This function is enabled when
UART0 enables the serial clock output.
General I/O port. This function is always enabled.
Serial data input pin for UART0. Set the corresponding Port
Direction Register to input if this function is used.
General I/O port. This function is always enabled.
Serial data input pin for UART1. Set the corresponding Port
Direction Register to input if this function is used.
(Continued)
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