1 OuTline
1-6
Seiko epson Corporation
S1C63003/004/008/016 TeChniCal Manual
(Rev. 1.1)
Mask Option
1.3
S1C63003/004/008/016 provides the mask options shown below. Several hardware specifications are prepared in
each optional item, and one of them can be selected according to the application. Use the function option generator
"winfog" and segment option generator "winsog" provided as development tools for this selection. Mask pattern of
the IC is finally generated based on the data created by winfog and winsog. Refer to the "S5U1C63000A Manual"
for these tools.
<Outline of the mask option>
(1) Operating power voltage type
Either 3 V normal type (1.8 to 5.5 V) or 1.5 V low-voltage type (1.1 to 1.7 V) can be selected as the operating
power voltage type.
(2) OSC3 oscillation circuit
In the S1C63004/008/016, the OSC3 oscillator type can be selected from ceramic oscillation, CR oscillation (ex-
ternal R) and CR oscillation (built-in R). The S1C63003 OSC3 oscillator type is fixed at CR oscillation (built-in
R). Refer to "OSC3 Oscillation Circuit" in the "Oscillation Circuit and Clock Control" chapter for details.
(3) ReSeT terminal pull-down resistor
An internal pull-down resistor can be incorporated into the RESET port. Refer to "Reset Terminal (RESET)" in
the "Initial Reset" chapter for details.
(4) SeG/GPiO/RFC selector
The I/O port (P20–P53) and R/F converter input/output pins are shared with the SEG terminals. This mask op-
tion allows selection of whether each of these pins are used for the I/O port or R/F converter or used for the SEG
output. Refer to "Mask Option" in the "LCD Driver" chapter for details.
(5) i/O port pull-down resistor
An internal pull-down resistor that will be enabled in input mode can be incorporated into each I/O port (P00–
P53). Refer to "Mask Option" in the "I/O Ports" chapter for details.
(6) Output specification of the i/O port
Either complementary output or P-channel open drain output can be selected as the output cell type of each I/O
port (P00–P53). Refer to "Mask Option" in the "I/O Ports" chapter for details. Do not configure the P50–P53 ports
to P-channel open drain output if the R/F converter (channel 0) is used.
(7) Multiple key entry reset function (by simultaneous high input to the P0x ports)
This option allows selection of whether the function to reset the IC by pressing multiple keys simultaneously is
implemented or not. A combination of the P0x ports (P00–P03) to be used for this function can also be selected.
Refer to "Simultaneous High Input to P0x Ports (P00–P03)" in the "Initial Reset" chapter for details.
(8) Time authorize circuit for the multiple key entry reset function
When the multiple key entry reset option (option (7)) is selected, the time authorize circuit can also be incorpo-
rated. The time authorize circuit measures the high pulse width of the simultaneous input signals and asserts the
reset signal if it is longer than the predetermined time. This option is not available when the multiple key entry
reset option is not selected. Refer to "Simultaneous High Input to P0x Ports (P00–P03)" in the "Initial Reset"
chapter for details.
(9) lCD drive power supply
In the S1C63004/008/016, either the internal power supply or an external power supply can be selected as the
LCD drive power source. When the internal power supply is selected, the reference voltage for boosting (V
C1
or
V
C2
) can be set using a register. The S1C63003 LCD drive power source can also be selected from the internal
power supply and an external power supply by mask option. When using the internal power supply, the reference
voltage for boosting (V
C1
or V
C2
) should be selected by mask option. Refer to "Mask Option" in the "LCD Driver"
chapter for details.
(10) lCD segment specification
The display memory bits can be allocated to a desired SEG terminal. It is also possible to set SEG terminals for
DC output. Refer to "Mask Option" in the "LCD Driver" chapter for details.