★ HARDWARE Manual ★ Sega Saturn Overview Manual
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■ 3.7 SMPC

The SMPC resets the entire Saturn system when the power is turned on or the reset button is pressed. In addition, commands from SH-2 are used to turn on / off the peripheral LSI inside Saturn, set and acquire the calendar clock, and collect data from the peripheral. In addition, the clock change command switches the horizontal resolution to 320 dots or 352 dots.

Figure 3.34 SMPC system configuration

(* Peripheral input / output terminals can also be controlled directly from the SH-2 side.)

● Function

Table 3.13 lists the main features of SMPC.

Table 3.13 SMPC features
 RTC
 (Real Time Clock)
・ Time setting and acquisition from SH-2 ・ Battery backup function ・ Automatically update date, day of the week, hour, minute and second
 SM
 (System Manegement)
・ Sound CPU ON / OFF
・ ON / OFF of master SH-2 and slave SH-2
・ System reset control ・ Clock switching (PLL switching)
・ Power ON reset ・ Saturn system reset when the power is turned on and the reset switch is pressed
 PC
 (Peripheral Control)
 -Automatically collects peripheral data for control pads, mice, etc.-Supports megadrive and genesis peripherals (3 buttons, 6 buttons, 4 player adapters, mice)
■ PAD
Table 3.14 shows the digital PAD specifications for Saturn.
Table 3.14 Saturn standard PAD specifications
 PAD type
 specification
 Saturn standard PAD
 button:
 Top, bottom, left, right, A, B, C, X, Y, Z, L, R, start

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★ HARDWARE Manual ★ Sega Saturn Overview Manual
Copyright SEGA ENTERPRISES, LTD., 1997