Table of Contents
Advertisement
APPENDIX A PERIPHERAL CIRCUIT BOARD FOR S1C88655
(21) LED 13
Unused.
(22) LED 14 (OSC1 operating clock)
The OSC1 operating clock is connected to this
LED. The corresponding monitor pin (pin 14)
can be used to check the OSC1 clock frequency.
(23) LED 15 (OSC3 operating clock)
The OSC3 operating clock is connected to this
LED. The corresponding monitor pin (pin 15)
can be used to check the OSC3 clock frequency.
(24) LED 16 (FPGA configuration)
If the FPGA on the S5U1C88000P1 includes
circuit data, this LED lights when the power is
turned on. If this LED does not light at power-
up, a circuit data must be written to the FPGA
before debugging can be started (turn the
power on again after writing data).
(25) LED signal monitor connector
This connector provides the signals that drive the
LEDs shown above for monitoring. The signals
listed below are output from the connector pins.
The signal level is high when the LED is lit and is
low when the LED is not lit.
19
17
15
13
20
18
16
14
Fig. A.1.3 LED signal monitor connector
Pin 1: LED 1 (MPU/MCU mode)
Pin 2: LED 2 (Bus mode)
Pin 3: LED 3 (CPU mode)
Pin 4: LED 4 (CPU operating clock)
Pin 5: LED 5 (OSC1 oscillation status)
Pin 6: LED 6 (OSC3 oscillation status)
Pin 7: LED 7 (SVD circuit status)
Pin 8: LED 8 (Supply voltage booster circuit status)
Pin 9: LED 9 (V
voltage generator status)
C5
Pin 10: LED 10 (V
C1–4
Pin 11: LED 11 (LCD driver circuit status)
Pin 12: LED 12 (HALT/SLEEP, RUN status)
Pin 14: LED 14 (OSC1 operating clock)
Pin 15: LED 15 (OSC3 operating clock)
Pin 18: OSC1 CR oscillation frequency monitor pin
Pin 19: OSC3 CR oscillation frequency monitor pin
Pins 13, 16, 17 and 20 are not used.
The CR oscillation clock is connected to pins 18
and 19. (The CR oscillation circuit on this
board always operates even if crystal oscilla-
tion is selected by mask option and regardless
of the SOSC1/3 register status.) These pins can
be used to monitor CR oscillation when
adjusting the oscillation frequency.
S1C88655 TECHNICAL MANUAL
11
9
7
5
3
1
12
10
8
6
4
2
voltage generator status)
(S5U1C88000P1 + S5U1C88655P2 + S5U1C88655T1)
(26) I/O #1, I/O #3 connectors
These are the connectors for connecting the I/
O and LCD panel board. The I/O cables (80-
pin/40-pin × 2 flat type, 40-pin/20-pin × 2 flat
type) are used to connect to the target system.
(27) LCD module (standard TCM)
This is a 128 × 64-dot LCD panel module using
the standard TCM (see Appendix C). This LCD
module has included an actual S1C88655
device, note, however, that the chip is config-
ured to work as only an LCD driver using the
device test function (unreleased).
(28) ICE connector (CN1-1)
Connect between this connector and I/O #1
connector on the S5U1C88000P1 using the I/O
cable (80-pin/40-pin × 2 flat type).
EPSON
155
Advertisement
Table of Contents
