From: Luke Kenneth Casson Leighton Date: Thu, 21 Jun 2018 11:01:34 +0000 (+0100) Subject: update X-Git-Tag: convert-csv-opcode-to-binary~5127 X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e78b7b7ca6dd01047a7a1872fd3e3514b7f7937c;p=libreriscv.git update --- diff --git a/pinmux/pinmux_chennai_2018.tex b/pinmux/pinmux_chennai_2018.tex index 0901b67fb..d8fd4b437 100644 --- a/pinmux/pinmux_chennai_2018.tex +++ b/pinmux/pinmux_chennai_2018.tex @@ -238,14 +238,14 @@ \frame{\frametitle{Muxer cases to handle (One/Many to One/Many) etc.} \begin{itemize} - \item One FN outputs to Many Pins: no problem\\ + \item One FN output to Many Pins: no problem\\ (weird configuration by end-user, but no damage to ASIC) \item One Pin to Many FN inputs: no problem\\ (weird configuration by end-user, but no damage to ASIC) - \item Many Pins to One FN input: {\bf Priority Mux needed}\\ - No priority mux: Pin1 = HI, Pin0 = LO, ASIC is damaged \item Many FN outputs simultaneously to one Pin: {\bf does not occur}\\ (not desirable and not possible, as part of the pinmux design) + \item Many Pins to One FN input: {\bf Priority Mux needed}\\ + No priority mux: Pin1=HI, Pin0=LO and ASIC is destroyed \item Some FNs (I2C\_SDA, SD\_D0..3) are I/O Buses\\ Bi-directional control of the Pin must be handed to the FN