參數(shù)資料
型號(hào): μPD30102
廠商: NEC Corp.
英文描述: 64-/32-BIT Microprocessor(64/32位微處理器)
中文描述: 64-/32-BIT微處理器(64/32位微處理器)
文件頁(yè)數(shù): 59/112頁(yè)
文件大?。?/td> 639K
代理商: ΜPD30102
μ
PD30102
59
Preliminary Data Sheet
13. GIU (GENERAL-PURPOSE I/O UNIT)
13.1 General
GIU controls GPIO and DCD# pins. The GPIO pins constitute a general-purpose I/O port. GIU can assign the
interrupt request signal function for these pins. As a trigger, the edge of the input signal (rising or falling edge), high
level, or low level can be selected. Use the PMUCNTREG register of PMU, however, to specify the start cause via the
GPIO (0:3), GPIO (9:12), or DCD# pin.
Table 13-1. GIU Registers
Physical Address
Symbol
Function
0x0B00 0100
GIUIOSELL
GPIO input/output setting register L
0x0B00 0102
GIUIOSELH
GPIO input/output setting register H
0x0B00 0104
GIUPIODL
GPIO input/output data register L
0x0B00 0106
GIUPIODH
GPIO input/output data register H
0x0B00 0108
GIUINTSTATL
GPIO interrupt register L
0x0B00 010A
GIUINTSTATH
GPIO interrupt register H
0x0B00 010C
GIUINTENL
GPIO interrupt enable register L
0x0B00 010E
GIUINTENH
GPIO interrupt enable register H
0x0B00 0110
GIUINTTYPL
GPIO interrupt trigger setting register L
0x0B00 0112
GIUINTTYPH
GPIO interrupt trigger setting register H
0x0B00 0114
GIUINTALSELL
GPIO interrupt level setting register L
0x0B00 0116
GIUINTALSELH
GPIO interrupt level setting register H
0x0B00 0118
GIUINTHTSELL
GPIO interrupt hold setting register L
0x0B00 011A
GIUINTHTSELH
GPIO interrupt hold setting register H
0x0B00 011C
GIUPODATL
GPIO output data register L
0x0B00 011E
GIUPODATH
GPIO output data register H
Table 13-2. Outline of GPIO pins
Pin
Interrupt Request
Detection Clock (internal)
Input Buffer Type
Output Clock
GPIO (49:32)
TClock
GPIO (31:16)
TClock
Normal
TClock
GPIO15 (DCD#)
MasterOut
Normal
GPIO (14:9)
MasterOut
Normal
MasterOut
GPIO (8:5)
TClock
Normal
TClock
GPIO4
TClock
Schmitt
TClock
GPIO (3:0)
RTC
Schmitt
RTC
Caution Pin GPIO15 cannot be used as a general-purpose I/O pin because its function is fixed to DCD#
signal input.
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