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FR60 MB91460E Series - Microcontrollers - Fujitsu

FR60 MB91460E Series - Microcontrollers - Fujitsu

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<strong>MB91460E</strong> <strong>Series</strong><br />

7.8.9. Bus hold timing<br />

(VDD35 = 3.0 V to 4.5 V, Vss5 = AVss5 = 0V,TA =−40 °C to + 105 °C)<br />

Parameter Symbol Pin name<br />

Value<br />

Min Max<br />

MCLKO ↓ to BGRNTX delay time<br />

tCLBGL<br />

tCLBGH<br />

MCLKO<br />

BGRNTX<br />

⎯<br />

⎯<br />

5<br />

6<br />

ns<br />

ns<br />

Bus HIZ to BGRNTX ↓ tAXBGL BGRNTX<br />

MCLK*<br />

A0 to An<br />

tCLKT + 8 ⎯ ns<br />

BGRNTX ↑ to Bus drive tBGHAV RDX, ASX<br />

WRXn,WEX<br />

CSXn,BAAX<br />

tCLKT + 1 ⎯ ns<br />

Note : BRQ must be kept High until the bus is granted (this is acknowledged by the falling edge of BGRNTX).<br />

It must be kept High as long as the bus shall be hold.<br />

After releasing the bus (BRQ set to Low) this is acknowledged by the rising edge of BGRNTX.<br />

Note : Condition for tAXBGL and tBGHAV :<br />

- VOL = 0.2 × VDD35<br />

- VOH = 0.8 × VDD35<br />

MCLKO<br />

BRQ<br />

BGRNTX<br />

ADDR, RDX, WRX,<br />

WEX, CSXn, ASX,<br />

MCLKE, MCLKI,<br />

MCLKO, BAAX<br />

tCLBGL tCLBGH<br />

tAXBGL tBGHAV<br />

196 DS705-00002-1v3-E<br />

Unit

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