aPPenDiX B PeRiPheRal CiRCuiT BOaRDS FOR S1C6F016
aP-B-10
Seiko epson Corporation
S1C63003/004/008/016 TeChniCal Manual
(Rev. 1.1)
<Those which can be verified by leDs and monitor pins>
(a) Run and Halt execution ratio (verified by LEDs and monitor pins on the ICE)
(b) OSC3 oscillation on/off circuit (OSCC)
(c) CPU clock select circuit (CLKCHG)
(d) SVD circuit on/off circuit (SVDON)
<Those that can only be counteracted by system or software>
(e) Current consumed by the internal pull-down resistors
(f) Input ports in a floating state
(3) Functional precautions
<lCD driver>
Use the LC1 connector (max. 56SEG
×
8COM) on the ICE (S5U1C63000H2/S5U1C63000H6) to drive an LCD
panel. Do not connect anything to the connector pins shown below.
- SEG pins that do not exist on the actual IC) or unused SEG pins
- SEG pins configured for DC output by mask option (Use the S5U1C63000P6 CN2 connector.)
- Pins configured for I/O port or R/F converter (SEG36–SEG55)
For other precautions on LCD drive outputs, refer to the ICE manual.
<SVD circuit>
• The SVD function in this tool sets the detection results by comparing the SVDS[3:0] register value with the
settings of the SW1 and SW2 on S5U1C6F016P2 without changing the supply voltage.
• There is a finite delay time from when the power to the SVD circuit turns on until actual detection of the volt-
age. There is no delay in this tool, which differs from that of the actual IC. Refer to "Electrical Characteristics"
when setting the appropriate wait time for the actual IC.
Note: The S1C63003 has no SVD circuit included.
<Oscillation circuit>
• A wait time is required before oscillation stabilizes after the OSC3 oscillation control circuit (OSCC) is turned
on. In this tool, even when OSC3 oscillation is changed (CLKCHG) without a wait time, OSC3 will function
normally. Refer to "Electrical Characteristics" when setting the appropriate wait time for the actual IC.
• Use separate instructions to switch the clock from OSC3 to OSC1 and to turn off the OSC3 oscillation circuit.
If these operations are executed simultaneously with a single instruction, although this tool functions normally,
may not function properly in the actual IC.
• Because the logic level of the oscillation circuit is high, the timing at which the oscillation starts in this tool
differs from that of the actual IC.
• This tool includes oscillation circuits for OSC1 and OSC3. Note that the OSC3 oscillation circuit in this tool
can generate the OSC3 clock even if no resonator is connected.
• The oscillation frequencies in this tool are as follows:
- OSC1 oscillation circuit (crystal): Fixed at 32.768 kHz
- OSC3 oscillation circuit (CR):
About 100 kHz to 8 MHz (The OSC3 frequency is adjustable.
Set it to the frequency used in the actual product.)
<access to undefined address space>
If any undefined space in the actual IC's internal ROM/RAM or I/O is accessed for data read or write operations,
the read/written value is indeterminate. Additionally, it is important to remain aware that indeterminate state dif-
fers between this tool and the actual IC. Note that the ICE incorporates the program break function caused by
accessing to an undefined address space.
Note: In the S1C63003, no program break occurs when an undefined address space from 0080H to
00FFH is accessed. Therefore, set a data break condition to this area or take other measures when
creating the program.