Nintendo 1504166 Programming Manual - Page 130
Control Register, SIOCNT [d14] Interrupt Request Enable Flag
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AGB Programming Manual Communication Functions Control Register When Register RCNT (d15) = (0), the mode will be 8-bit normal serial communication mode by setting to Register SIOCNT (d13, d12) = (0,0), and the mode will be 32-bit normal serial communication mode by setting to SIOCNT (d13, d12) = (0, 1). Address 128h Register SIOCNT 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 Attributes 0 R/W Initial Value 0000h Shift Clock Selection 0: Use external clock as receiver 1: Use internal clock as sender Internal Shift Clock Selection 0: 256 KHz 1: 2 MHz Transfer enable flag receive Transfer Enable Flag Send 0: Enable Transfer 1: Disable Transfer Start Bit 0: No Serial Transfer 1: Start Serial Transfer (reset when finished) Transfer Length Set Flag 0: 8-bit Transfer 1: 32-bit Transfer Interrupt Request Enable Flag 0: Disable 1: Enable SIOCNT [d14] Interrupt Request Enable Flag If 0 is set, an interrupt request will not be made. If 1 is set, an interrupt request will be made immediately after transfer is complete. SIOCNT [d12] Transfer Length Setting Flag Sets bit length of transfer data. If 0, 8-bit transfer is carried out. If 1, 32-bit transfer is carried out. SIOCNT [d07] Start Bit With a setting of 1, a serial transfer starts. The bit is automatically reset after transfer completion. ©1999 - 2001 Nintendo of America Inc. 130 D.C.N. AGB-06-0001-002B4