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LC19001A010 Datasheet(PDF) 7 Page - Sanyo Semicon Device |
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LC19001A010 Datasheet(HTML) 7 Page - Sanyo Semicon Device |
7 / 8 page No. 5560-7/8 LC19001A010 Continued from preceding page. Parameter Function Description Reset Hardware reset There are four types of reset: hardware reset, software reset, power on reset, and Software reset watchdog reset. Power on reset Operation starts after the oscillator stabilization period has elapsed when stop mode is cleared and after a power on reset. Watchdog reset A reset function operates automatically if the application software fails. Status diagnostic function Control setting state Sends the controller’s current state of the settings to the host CPU. verification Information sent includes the coordinate calculation method, the data output mode, and the output rate. Interface diagnostic function Interface verification Uses arbitrary data to verify whether communication between the controller and the host CPU is functioning normally. Menu area function Menu area registration A menu area can be registered at an arbitrary location. Up to 24 menu items can be registered. Reference value setup function Matching positions Accepts A/D values and reference coordinate values from the host CPU for use in normalizing the A/D converted data and in matching positions. Duplicate coordinate processing Duplicate coordinates are not Compares the coordinate values transferred in the previous operation with the function transmitted current coordinate data and if the coordinate values are the same (i.e., if they are duplicate coordinate values) the LC19001A010 does not send the current coordinate data. (Only valid in stream mode) Timeout function Sets the timeout time If the required data was not received within the preset timeout time, the controller sends F3h to the host CPU. Noise exclusion function Sets the parameters used to Normally set to be about 10% of the number of pixels. (only valid in normalized reduce noise levels mode) Initial values: X = 64, Y = 48 Lock function Starts and clears the lock If a lock command is issued, after transmitting the coordinate data currently being function transmitted, the controller halts transmission. The lock state is cleared by sending a lock clear command. Coordinate Data Output Format: 4-byte structure Ph 0 0 P X3 X2 X1 X0 0 0 X9 X8 X7 X6 X5 X4 0 0 0 0 Y3 Y2 Y1 Y0 0 0 Y9 Y8 Y7 Y6 Y5 Y4 bit 7 6 5 4 3 2 1 0 First byte Second byte Third byte Fourth byte • Ph: Phase bit, always set to 1. • 0: Zero bits, always cleared to 0. • X0 to X9: Horizontal axis value (X) as a binary value (X9 is the high-order bit) • Y0 to Y9: Vertical axis value (Y) as a binary value (Y9 is the high-order bit) • P: Pen status (pen down = 1, pen up = 0) – When the pen is in the up state, the LC19001A010 sends a single byte with the value 80 h. Menu Area Number Output Format: 1-byte structure Ph 1 0 M4 M3 M2 M1 M0 bit 7 6 5 4 3 2 1 0 First byte • Ph: Phase bit, always set to 1. • 1: One bit, always set to 1. • 0: Zero bit, always cleared to 0. • M0 to M4: Menu number M (range: 1 to 24) as a binary value (M4 is the high-order bit) – When the pen is in the up state, the LC19001A010 sends a single byte with the value 80 h. Note : Coordinate data and menu area data can be differentiated by inspecting bit 6. (See the data format descriptions above.) |
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