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● Function
Table 3.13 shows the main functions of SMPC.

Table 3.13 SMPC functions
 RTC 
(Real Time Clock)
-Time setting and acquisition from SH-2 
-Battery Backup function
・ Date, day, hour, minute, second automatically updated
 SM 
(System Manegement)
-Sound CPU ON / OFF 
-Master SH-2, Slave SH-2 ON / OFF
-System reset control
-Clock switching (PLL switching)
-Power-on reset
-Saturn when the reset switch is pressed
Reset system
 PC 
(Peripheral Control)
-Automatically collects peripheral data such as control pads and mice 
-Supports Megadrive and Genesis peripherals (3-button, 6-button, 4-player adapter, mouse)
Port

PAD

Table 3.14 shows the digital PAD specifications for Saturn.

Table 3.14 Saturn standard PAD specifications
 PAD type 
 Services 
 Saturn standard PAD 
 buttons: 
Up, Down, Left, Right, A, B, C, X, Y, Z, L, R, start


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