參數(shù)資料
型號(hào): MB91V301A
元件分類(lèi): 微控制器/微處理器
英文描述: 32-BIT, 68 MHz, RISC MICROCONTROLLER, CPGA179
封裝: CERAMIC, PGA-179
文件頁(yè)數(shù): 49/140頁(yè)
文件大?。?/td> 2841K
代理商: MB91V301A
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MB91301 Series
16
DS07-16502-4E
(Continued)
Pin no.
Pin name
I/O circuit
type
Function
MB91302A
MB91V301A
106
136
DREQ1
J
DMA External input for DMA transfer requests. This
input is used continuously when selected as a DMA
activation trigger. In this case, do not output to this
port unless doing so intentionally.
PB3
General purpose input/output port. The pin has this
function when completion output and stop input are
disabled for DMA transfer.
107
137
DACK1
J
External acknowledge output for DMA transfer
requests. The pin has this function when outputting
DMA transfer request acknowledgement is enabled.
TRG1
External trigger input for PPG timer. This input is
used continuously when the corresponding timer
input is enabled. In this case, do not output to this
port unless doing so intentionally.
PB4
General purpose input/output port.
108
138
DEOP1
J
Completion output for DMA external transfer. The
pin has this function when outputting DMA transfer
completion is enabled.
PPG1
PPG timer output. The pin has this function when
PPG1 bit is enabled.
PB5
General purpose input/output port.
109
139
IOWR
J
Write strobe output for DMA fly-by transfer. The pin
has this function when outputting a write strobe for
DMA fly-by transfer is enabled.
PB6
General purpose input/output port. The pin has this
function when outputting a write strobe for DMA
fly-by transfer is disabled.
110
140
IORD
J
Read strobe output for DMA fly-by transfer. The pin
has this function when outputting a read strobe for
DMA fly-by transfer is disabled.
PB7
General purpose input/output port. The pin has this
function when outputting a write strobe for DMA
fly-by transfer is disabled.
112
143
X0
A
Clock (oscillation) input.
113
144
X1
A
Clock (oscillation) output.
116 to 118
147 to 149
MD0 to MD2
G
Mode pins 0 to 2. The levels applied to these pins
set the basic operating mode. Connect VCC or VSS.
119
152
INIT
B
External reset input (Reset to initialize settings)
(“L” active)
120
053
NMI
M
NMI (Non Maskable Interrupt) input (“L” active)
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