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18
66 /DACK1
67 /DACK0
68 /WAIT O Wait output
69 /CS6
70 /CS5
71 /CS4
72 /CS0
73 GND PWR 0V
74 /WE1
75 /WE0
76 /RD I Read strobe
77 SA22 I Address bus
Address bus
78 SA5
82 SA1
83 GND PWR 0V
84 SD0
89 SD5
90 GND PWR 0V
91 LVcc PWR +3.3V
92 SD6
99 SD13
100 GND PWR 0V
101 SD14
109 SD22
110 GND PWR 0V
111 SD23
119 SD31
120 GND PWR 0V
I/O
I/O
I/O
I/O Data bus
Data bus
Data bus
Data bus
I
I Chip select input
I Write strobe
O DMA acknowledge
Pin I/O
55 /CS_Q2REG O Q2i inside register chip select
56 ADPCM_SW I ADPCM switch
DMA request
57 GND PWR 0V
58 /RST_3 I Power on reset
59 CKIO I System clock input(39.3216MHz)
60 GND PWR 0V
61 LVcc PWR +3.3V
62 /FCS O Flash memory chip select
Flash memory write strobe
63 /FWE O
64
65
/DREQ1
/DREQ0
O
IC861 (LC24072B)2/2
Signal
Function
EXPLANATION OF MICROCOMPUTER