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參數(shù)資料
| 型號(hào)： | UPD77213GJ-xxx-8EN |
| 廠商： | NEC Corp. |
| 元件分類： | 數(shù)字信號(hào)處理 |
| 英文描述： | 16-BIT FIXED-POINT DIGITAL SIGNAL PROCESSOR |
| 中文描述： | 16位定點(diǎn)數(shù)字信號(hào)處理器 |
| 文件頁(yè)數(shù)： | 16/74頁(yè) |
| 文件大小： | 467K |
| 代理商： | UPD77213GJ-XXX-8EN |
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Data Sheet U15203EJ3V0DS
16
μ
PD77210, 77213
External data memory interface
Pin No.
Pin Name
144-pin LQFP
161-pin FBGA
I/O
Function
Alternate
Pin
MA0 to
MA19
Note
84, 85,
90 to 97,
100 to 107,
111, 112
M6,N6,N7,P8,
M7,M8,P9,N8,
L8,N9,M9,N10,
M10,P11,L10,
M11,N11,N12,
M13,M12
Output
(3S)
Address bus of external data memory
These pins output an address when the external data
memory is accessed.
SDCLK,
SDCR,
SDDAT0,
SDMON
MD0 to
MD15
119,120,
125 to 132,
135 to 140
J12,H13,G13,
H14,H12,H11,
G14,F13,G12,
E13,F11,E14,
D13,F12,E12,
D14
I/O
(3S)
16-bit data bus
These pins input/output data when the external data
memory is accessed.
MWR
116
K12
Output
(3S)
Write output
This pin outputs a write strobe signal for the external
data memory.
MRD
115
L13
Output
(3S)
Read output
This pin outputs a read strobe signal for the external
data memory.
MHOLDAK
114
L14
Output
Hold acknowledge signal
This pin goes low when the external device is
granted use of the external data memory bus of the
μ
PD77210 Family.
MHOLDRQ
113
L12
Input
Hold request signal
The external device inputs a low level to this pin
when it uses the external data memory bus of the
μ
PD77210 Family.
MWAIT
117
K13
Input
Wait signal input
This pin inserts wait cycles when the
μ
PD77210
Family accesses the external data memory.
0: Inserts wait cycles.
1: Does not insert wait cycles.
MBSTB
118
J13
Output
Bus strobe signal
This pin goes low while the
μ
PD77210 Family uses
the external data memory bus.
Note
MA13 to MA19 pins of the
μ
PD77213 are alternate function pins.
Remark
Those pins marked “3S” in the above table enter the high-impedance state under the following
conditions:
MA0 to MA19, MRD, and MWR: When the bus is released (MHOLDAK = low level)
MD0 to MD15: When the external data memory is not accessed and when the bus is released
(MHOLDAK = low level)
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