X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=shakti%2Fm_class.mdwn;h=13b153b75ce143b473c2d4d18a7f30986ac581e4;hb=9449db4c70cb38c3c2938eae00e50f7e800cb1d5;hp=6c49804981f12b48e32675439e01a2b66e1772b0;hpb=e82512b53f95fb126ad5f06b7b97833d66858e77;p=libreriscv.git

diff --git a/shakti/m_class.mdwn b/shakti/m_class.mdwn
index 6c4980498..13b153b75 100644
--- a/shakti/m_class.mdwn
+++ b/shakti/m_class.mdwn
@@ -99,7 +99,8 @@ firmly a priority focus.
 * SD/MMC for on-PCB eMMC (care needed on power/boot sequence)
 * NAND Flash (not recommended), requires 8080/ATI-style Bus with dedicated CS#
 * Optional 4-wire SPI NAND/NOR for boot (XIP - Execute In-place - recommended).
-* Audio over I2S (5-pin: 4 for output, 1 for input), fall-back to USB Audio
+* Audio over [[I2S]] (5-pin: 4 for output, 1 for input), fall-back to USB Audio
+* Audio also over [[AC97]]
 * Some additional SPI peripherals, e.g. connection to low-power MCU.
 * GPIO (EINT-capable, with wakeup) for buttons, power, volume etc.
 * Camera(s) either by CSI-1 (parallel CSI) or better by USB
@@ -197,24 +198,30 @@ TBD
 * 3x UART (TX/RX only)
 * 3x [[I2C]] (in case of address clashes between peripherals)
 * 8080-style AT/XT/ATI MCU Bus Interface, with multiple (8x CS#) lines
-* 3x PWM-capable GPIO
-* 32x EINT-cable GPIO with full edge-triggered and low/high IRQ capability
+* 3x [[PWM]]-capable GPIO
+* 32x [[EINT]]-cable GPIO with full edge-triggered and low/high IRQ capability
 * 1x [[I2S]] audio with 4-wire output and 1-wire input.
 * 3x USB2 (ULPI for reduced pincount) each capable of USB-OTG support
 * DDR3/DDR3L/LPDDR3 32-bit-wide memory controller
 
 Some interfaces at:
 
+* <https://github.com/RoaLogic/apb4_gpio>
 * <https://github.com/sifive/sifive-blocks/tree/master/src/main/scala/devices/>
   includes GPIO, SPI, UART, JTAG, I2C, PinCtrl, UART and PWM.  Also included
   is a Watchdog Timer and others.
 * <https://github.com/sifive/freedom/blob/master/src/main/scala/everywhere/e300artydevkit/Platform.scala>
   Pinmux ("IOF") for multiplexing several I/O functions onto a single pin
+* <https://bitbucket.org/casl/c-class/src/0e77398a030bfd705930d0f1b8b9b5050d76e265/src/peripherals/?at=master>
+  including AXI, DMA, GPIO, I2C, JTAG, PLIC, QSPI, SDRAM, UART (and TCM?).  FlexBus, HyperBus and xSPI to
+  be added.
 
 List of Interfaces:
 
 * [[I2C]]
 * [[I2S]]
+* [[PWM]]
+* [[EINT]]
 * [[FlexBus]]
 * LCD / RGB/TTL [[RGBTTL]]
 * [[SPI]]