CHAPTER 3: PRECAUTIONS ON USING THE S5U1C63007P PERIPHERAL CIRCUIT BOARD
S5U1C63007P MANUAL (PERIPHERAL CIRCUIT
EPSON
5
BOARD FOR S1C63557/63558/63567)
<Access to undefined address space>
If undefined address space in the ROM or RAM is accessed for read or write, the read or written
values become indeterminate. Furthermore, since the way these values become indeterminate is
different in the S5U1C63007P board and an in actual IC, care should be exercised. Note that the ICE
has a function to cause program execution to break when access to an undefined address space is
attempted.
<Reset circuit>
- The S5U1C63007P board does not contain an oscillation stop detection circuit (to generate a system
reset signal when the oscillation has stopped). Note that the oscillation stop detection circuit does not
guarantee operation with 100% accuracy.
- The sequence of operations from when the ICE is powered on until the program starts operating is
different in the S5U1C63007P board and an actual IC. The ICE enters a ready state when the user
program, etc., as well as option data are loaded on the S5U1C63007P board.
<Internal power supply circuit>
- For VDC, DBON, HLON, VDSEL, and VCSEL, the S5U1C63007P board only contains registers and
does not actually control the voltages. Moreover, in the actual IC S1C63557/558 that is supported
S5U1C63007P, the resisters mentioned above cannot be used.
- Although the S5U1C63007P board has a control (VLCD) to adjust the LCD drive voltage, an actual IC
in almost all cases does not have such an adjustment facility; therefore, be careful. Note that this
control is useful for only those models whose LCD drive bias is 1/2 or 1/3.
- The operating frequency range that can be used depends on the internal power-supply voltage.
Therefore, consult the technical hardware manual to ensure that your system will not be operated
with an improper combination of operating frequency and internal power-supply voltage.
<FSK demodulator>
The S5U1C63007P provides the FSK demodulator shown in Figure 3.2.1 using the NPC SM8220P
CMOS IC. The TIP and RING pins are provided with an exclusive connector.
J2
TMCRFI-64
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
R148
270k
Ω
C71
0.22
µ
F
C66
0.1
µ
F
R147
470k
Ω
R149
33k
Ω
V
DD
V
SS
V
SS
V
SS
V
DD
TIP
RING
AGND
RDIN
RDRC
RDET
POWN
GND
V
DD
FOUT
DMIN
DOUT
NC
CDET
OSCOUT
OSCIN
FSKIN
XCDIN
FOSC3
FSKON
XRDIN
CP4
LC-3-G
CP5
LC-3-G
CP6
LC-3-G
C66
510pF
R145
10k
Ω
C68
510pF
R146
10k
Ω
B
CB
PSG
CG
C64
10
µ
F
C70
0.22
µ
F
C69
0.22
µ
F
V
SS
D17
1SS81
D19
1SS81
D18
1SS81
D20
1SS81
1
2
3
4
5
6
1
2
3
4
F1
BNX002-01
SM8220P
U23
U50
74HC00
C67
0.1
µ
F
11
13
12
Fig. 3.2.1 FSK demodulator
