參數(shù)資料
型號(hào): S1C88848D0A0100
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 8.2 MHz, MICROCONTROLLER, UUC192
封裝: DIE-192
文件頁數(shù): 77/174頁
文件大?。?/td> 1304K
代理商: S1C88848D0A0100
160
EPSON
S1C88848 TECHNICAL MANUAL
APPENDIX A S5U1C88000P1&S5U1C88816P2 MANUAL (Peripheral Circuit Board for S1C88848)
When using an external clock, adjust the
external clock (amplitude: 3.3 V ±5%, duty:
50% ±10%) and input to the OSC1 or OSC3
terminal with VSS as GND.
This board can operate normally even when the
CPU clock is switched to OSC3 (CLKCHG = "1")
immediately after the OSC3 oscillation control
circuit is turned on (OSCC = "1") without a wait
time inserted. In the actual IC, an oscillation
stability wait time is required before switching
the CPU clock after the OSC3 oscillation is
turned on. Refer to Chapter 7, "ELECTRICAL
CHARACTERISTICS" when setting the appro-
priate 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 executed simultaneously
with a single instruction, these operations,
although good with this board, may not
function properly with the actual IC.
This board contains oscillation circuits for
OSC1 and OSC3. Keep in mind that even
though the actual IC may not have a resonator
connected to its OSC3, this board can operate
with the OSC3 circuit.
Because the logic level of the oscillation circuit
is high, the timing at which the oscillation
starts on this board differs from that of
theactual IC.
Access to undefined address space
If any undefined space in the S1C88848'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 the indetermi-
nate state differs between this board and the
actual IC.
Reset circuit
Keep in mind that the operation sequence from
when the ICE with this board installed is
powered on until the time at which the
program starts running differs from the
sequence of the actual IC. This is because this
board becomes capable of operating as a
debugging system after the user program and
optional data are downloaded.
Internal power supply circuit
The LCD drive voltage on this board is
different from that on the actual IC.
(4) Notes on model support
Parameter file
The ROM, RAM and I/O spaces in the ICE with
this board installed are configured when the
debugger on the personal computer starts up
using the parameter file (88848.par) provided for
each model.
The parameter file allows the user to modify its
contents according to the ROM and RAM spaces
actually used. However, do not configure areas
other than below.
ROM area: 0000H to BFFFH
RAM area: F000H to F5FFH
Stack area: F000H to F5FFH
(5) S5U1C88816P2 (add-on board)
This board provides only the 1/17 duty LCD
drive function (COM16 output) for the
S1C88848. When 1/17 duty mode is not used,
this board is not required.
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