AK4184A Datasheet, PDF (20/36 Pages) Asahi Kasei Microsystems – TSC with Keypad Scanner and GPIO Expander

[AK4184A]
■ ΩʔύουɺGPIOɺLED ً౓ௐ੔੍
ޚ
ΩʔύουεΩϟφɺGPIOɺLEDً౓ௐ੔ϒϩοΫʹΞΫηε͢Δ৔߹ͷ੍ޚίϚϯυͷϑΥʔϚοτΛ
Table 10 ʹࣔ͠·͢ɻॻ͖ࠐΈɺಡΈग़͠γʔέϯεΛ Figure 11ɺ Figure 12 ʹࣔ͠·͢ɻ͜ΕΒͷϒϩοΫ
ʹΞΫηε͢Δ৔߹͸ɺ੍ޚίϚϯυͷMSBόΠτ(λονεΫϦʔϯ੍ޚίϚϯυ)͸ɺ“0”Λೖྗͯͩ͘͠
͍͞ɻ੍ޚσʔλɺಡΈग़͠σʔλͷϑΥʔϚοτ͸ɺTable 4 ΛࢀরԼ͍͞ɻ
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1
D0
0 0 0 0 0 0 0 0 W/R PAGE
ADDR[5:0]
Table 9. ΩʔύουɺGPIOɺLEDً౓ௐ੔੍ޚίϚϯυ ϑΥʔϚοτ
Bits Name
ػೳ
7
W/R Write/Read bit
0: Write
1: Read
6
PAGE Page bit (Table 3 Λࢀর͍ͯͩ͘͠͞
5:0 ADDR _{Address bit (Table 4 Λࢀর͍ͯͩ͘͠͞)}
Table 10. Control Command
1. Write Operation
CSN
SCLK
1 2 3 8 9 10 11 12 13 14 15 16 17 18 19
25 26 27 28 29 30 31 32
DIN
DOUT ^Hi-Z
W/R Page
ADDR[5:0]
Control Command
“0”
15 14 13 8 7 6 5 4 3 2 1 0
Control Data
Hi-Z
Figure 11. Write Operation
2. Read Operation
CSN
SCLK
1 2 3 8 9 10 11 12 13 14 15 16 17 18 19
25 26 27 28 29 30 31 32
DIN
W/R Page
ADDR[5:0]
DOUT ^Hi-Z
Control Command
“0”
15 14 13 8 7 6 5 4 3 2 1 0 ^Hi-Z
Read Data
Figure 12. Read Operation
MS0947-J-00
-20-
2008/04