Zoom V3 1612 Manual de usuario descargar pdf (Pagina 23)

BIT1612 10-Bit Digital Video Decoder with OSD and T-CON

6.5 GPO (General Purpose Output) Function

BIT1612 內部提供 8 個GPO Register control輸出、其可分別規劃為High Level、Low Level、Tri-State和Status

四種狀態。其相關Registers設定請參考

Table 6-8 和 Table 6-9。

Table 6-8 General Purpose Output Register

Mnemonic Address R/W Bits Description Default

GPO Port Enable

0: Disable

R_GPO_SEL 0x008[7:0] RW 8

1: Enable

0x00

GPO Port Type

0: Normal

R_GPO_TYPE 0x009[7:0] RW 8

1: Tri-State

0xFF

GPO Port Value

0: Low Level

R_GPO_REG 0x00A[7:0] RW 8

1: High Level

0x00

Table 6-9 General Purpose Output Pads Setup Table

GPO Pin Name/ No. Output Pin Register Recommended Setting

GPO[0] SRGB_D0(44) R_GPO_OUT (0x13C[5]) = 1

GPO[1] SRGB_D1(45) R_GPO_OUT (0x13C[5]) = 1

GPO[2] SRGB_D2(46) R_GPO_OUT (0x13C[5]) = 1

GPO[3] SRGB_D3(47) R_GPO_OUT (0x13C[5]) = 1

GPO[4] SRGB_D4(48) R_GPO_OUT (0x13C[5]) = 1

GPO[5] SRGB_D5(49) R_GPO_OUT (0x13C[5]) = 1

GPO[6] PWM1(74) R_GPO_SEL[6] = 1

GPO[7] PWM2(75) R_GPO_SEL[7] = 1

GPO[0] ROUT[0](11) R_GPO_SEL[0] = 1

GPO[1] ROUT[1](12) R_GPO_SEL[1] = 1

GPO[2] GOUT[0](22) R_GPO_SEL[2] = 1

GPO[3] GOUT[1](23) R_GPO_SEL[3] = 1

GPO[4] BOUT[0](34) R_GPO_SEL[4] = 1

GPO[5] BOUT[1](35) R_GPO_SEL[5] = 1

6.6 System Enable and Reset

BIT1612 可以從外部SRST PIN (Pin 101) 輸入一個大於 16 個XCLK Cycles的Low訊號，BIT1612 將被強制

Reset 回到Power On 時的狀態。相關波形請參考

Figure 6-3。

Reset Pulse must be longer than 16 XCLK cycles

RESET

Figure 6-3 Hardware Reset Waveform

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 114 115

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Zoom V3 1612 Manual de usuario Pagina 23

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