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S1D13505 Datasheet(PDF) 52 Page - Epson Company |
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S1D13505 Datasheet(HTML) 52 Page - Epson Company |
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52 / 565 page  Epson Research and Development Page 47 Vancouver Design Center Hardware Functional Specification S1D13505 Issue Date: 01/02/02 X23A-A-001-14 1. If the S1D13505 host interface is disabled, the timing for DTACK# driven high is relative to the falling edge of CS#, AS# or the first positive edge of CLK after A[20:1], M/R# becomes valid, whichever one is later. 2. If the S1D13505 host interface is disabled, the timing for D[15:0] driven is relative to the fall- ing edge of UDS#, LDS# or the first positive edge of CLK after A[20:1], M/R# becomes valid, whichever one is later. Table 7-3: MC68000 Timing 3.0V 5.0V Symbol Parameter Min Max Min Max Units t1 Clock period 20 20 ns t2 Clock pulse width high 66 ns t3 Clock pulse width low 66 ns t4 A[20:1], M/R# setup to first CLK where CS# = 0 AS# = 0, and either UDS#=0 or LDS# = 0 10 10 ns t5 A[20:1], M/R# hold from AS# 00 ns t6 CS# hold from AS# 00 ns t7 R/W# setup to before to either UDS#=0 or LDS# = 0 10 10 ns t8 R/W# hold from AS# 00 ns t91 AS# = 0 and CS# = 0 to DTACK# driven high 00 ns t10 AS# high to DTACK# high 318312 ns t11 First BCLK where AS# = 1 to DTACK# high impedance 25 10 ns t12 D[15:0] valid to third CLK where CS# = 0 AS# = 0, and either UDS#=0 or LDS# = 0 (write cycle) 10 10 ns t13 D[15:0] hold from falling edge of DTACK# (write cycle) 00 ns t142 Falling edge of UDS#=0 or LDS#=0 to D[15:0] driven (read cycle) 00 ns t15 D[15:0] valid to DTACK# falling edge (read cycle) 00 ns t16 UDS# and LDS# high to D[15:0] invalid/high impedance (read cycle) 5 25 2.5 10 ns t17 AS# high setup to CLK 22 ns |
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