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參數(shù)資料
| 型號： | MB90P224B |
| 廠商： | Fujitsu Limited |
| 英文描述： | 8-Bit Proprietary Microcontroller(8位專用微控制器) |
| 中文描述： | 8位微控制器專利（8位專用微控制器） |
| 文件頁數(shù)： | 11/105頁 |
| 文件大?。?/td> | 1130K |
| 代理商： | MB90P224B |
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11
MB90220 Series
(Continued)
Pin no.
Pin name
Circuit
type
Function
77
PC5
E
General-purpose I/O port
This function is always valid.
TRG0
PPG trigger input pin
This function is valid when the PPG trigger input specification is
enabled.
The data on this pin is read as PPG trigger input (TRG0). During this
operation, the input may be used suddenly at any time; therefore, it is
necessary to stop output by other functions on this pin, except when
using it for output deliberately.
78
P50
E
General-purpose I/O port
This function is valid in single-chip mode and when the CLK output
specification is disabled.
CLK
CLK output pin
This function is valid in modes where the external bus is enabled and
the CLK output specification is enabled.
79
P51
E
General-purpose I/O port
This function is valid in single-chip mode or when the ready function
is disabled.
RDY
Ready input pin
This function is valid in modes where the external bus is enabled and
the ready function is enabled.
80
P52
E
General-purpose I/O port
This function is valid in single-chip mode or when the hold function is
disabled.
HAK
Hold acknowledge output pin
This function is valid in modes where the external bus is enabled and
the hold function is enabled.
81
P53
E
General-purpose I/O port
This function is valid in single-chip mode or external bus mode and
when the hold function is disabled.
HRQ
Hold request input pin
This function is valid in modes where the external bus is enabled and
the hold function is enabled.
During this operation, the input may be used suddenly at any time;
therefore, it is necessary to stop output by other fuctions on this pin,
except when using it for output deliberately.
82
P54
E
General-purpose I/O port
This function is valid in single-chip mode, when the external bus is in
8-bit mode, or when WR pin output is disabled.
WRH
Write strobe output pin for the high-order 8 bits of the data bus.
This function is valid in modes where the external bus is enabled, the
external bus is in 16-bit mode, and WR pin output is enabled.
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