diff options
author | tmk <hasu@tmk-kbd.com> | 2015-05-14 15:38:15 +0900 |
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committer | tmk <hasu@tmk-kbd.com> | 2015-05-19 00:39:43 +0900 |
commit | 9a2282157fbdf57ef0a50d4fea7da72505906588 (patch) | |
tree | 38bceaf7a84dcdb9678155e845520b4f5494c559 /converter/ibm4704_usb/ibm4704.txt | |
parent | 6014d1014e96a7b484699d4dd8c04292c0233b0e (diff) |
ibm4704_usb: Fix interrupt of clock(rising edge)
Diffstat (limited to 'converter/ibm4704_usb/ibm4704.txt')
-rw-r--r-- | converter/ibm4704_usb/ibm4704.txt | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/converter/ibm4704_usb/ibm4704.txt b/converter/ibm4704_usb/ibm4704.txt index 9c4895d922..50d8c98b08 100644 --- a/converter/ibm4704_usb/ibm4704.txt +++ b/converter/ibm4704_usb/ibm4704.txt @@ -57,15 +57,15 @@ Keyboard to Host ---------------- Data bits are LSB first and Pairty is odd. Clock has around 60us high and 30us low part. - ____ __ __ __ __ __ __ __ __ __ ________ - Clock \____/ \_/ \_/ \_/ \_/ \_/ \_/ \_/ \_/ \_/ + ____ __ __ __ __ __ __ __ __ __ _______ + Clock \_____/ \_/ \_/ \_/ \_/ \_/ \_/ \_/ \_/ \_/ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ Data ____/ X____X____X____X____X____X____X____X____X____X________ Start 0 1 2 3 4 5 6 7 P Stop Start bit: can be long as 300-350us. Inhibit: Pull Data line down to inhibit keyboard to send. -Timing: Host reads bit while Clock is hi. +Timing: Host reads bit while Clock is hi.(rising edge) Stop bit: Keyboard pulls down Data line to lo after 9th clock. |