User`s guide

Figure 2–2 J3 Connector
LJ-04132.AI
power_led_l
vdd
gnd
gnd
vdd
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
toy_clr
jmp_irq0
jmp_irq1
jmp_irq2
sysclkdiv
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
39
37
35
33
31
29
27
25
23
21
19
17
15
13
11
9
7
5
3
1
To Speaker
Table 2–1 Jumper Position Descriptions
Select Bit
Register Bit
Name Function
sp_bit7 BOOT_OPTION Jumper out—Boot first image in flash ROM.
Jumper in (default)—Boot one of several
alternate images in flash ROM as specified by
RAM location 3F in TOY RAM. See Section B.1.7.
sp_bit6 MINI_DEBUG Jumper out (default)—Boot selected image in
flash ROM.
Jumper in—Trap to SROM debug port (J1).
(continued on next page)
System Jumpers and Connectors 2–3