User`s manual

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Figure 3 J3 Jumpers/Connectors

LJ-04132.SW

power_led_l

+5V

(not used)

gnd

gnd

+5V

key_lock

spkr

gnd

hd_led_l

hd_act_l

reset_button

gnd

sp_bit7

sp_bit6

sp_bit5

sp_bit4

sp_bit3

sp_bit2

sp_bit1

sp_bit0

(not used)

jmp_irq0

jmp_irq1

jmp_irq2

sysclkdiv

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To Speaker

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