Summary

RAVEN_SPI
community
efabless engineering
Hard IP
180nm
efabless
X-FAB
EFXH018D
Bandgap

Licensing

$0
$0

Maturity

layout
8

Library Package

5.0
Jul 20, 2018

Certifications

Description

The raven_spi is a standalone SPI slave module that services a handful of signals that the Raven SoC CPU cannot manage because they directly affect the operation of the CPU, including enabling the CPU power and several control signals for the CPU clock. Additional diagnostic signals are provided for manual reset and interrupt of the CPU, and for monitoring the CPU fault state. This 3.3V digital subsystem is specifically designed for use with the Raven SoC.

Features

  • 3.3V digital I/O

Figure(s)


Pins

NAME DESCRIPTION TYPE DIRECTION VMIN VMAX
VDD Power supply power inout 3.0 3.6
GND Ground ground inout 0.0 0.0
RST Master SPI reset signal input -0.5 VDD + 0.3
SCK SPI clock signal input -0.5 VDD + 0.3
SDI SPI data input signal input -0.5 VDD + 0.3
CSB SPI chip select (sense inverted) signal input -0.5 VDD + 0.3
SDO SPI data output signal output -0.5 VDD + 0.3
sdo_enb SPI data output enable (sense inverted) signal output -0.5 VDD + 0.3
xtal_ena Crystal oscillator enable signal output -0.5 VDD + 0.3
reg_ena 1.8V regulator enable signal output -0.5 VDD + 0.3
pll_vco_ena PLL VCO enable signal output -0.5 VDD + 0.3
pll_cp_ena PLL charge pump enable signal output -0.5 VDD + 0.3
pll_bias_ena PLL bias current enable signal output -0.5 VDD + 0.3
pll_trim<3:0> PLL frequency trim digital output -0.5 VDD + 0.3
pll_bypass PLL bypass signal output -0.5 VDD + 0.3
irq CPU interrupt request signal output -0.5 VDD + 0.3
reset CPU force reset signal output -0.5 VDD + 0.3
trap CPU fault signal input -0.5 VDD + 0.3
mask_rev_in<3:0> Mask revision (metal programmed) digital input -0.5 VDD + 0.3
mfgr_id<11:0> Manufacturer ID output to CPU digital output -0.5 VDD + 0.3
prod_id<7:0> Product ID output to CPU digital output -0.5 VDD + 0.3
mask_rev<3:0> Mask revision output to CPU digital output -0.5 VDD + 0.3

Parameters

Physical Parameters

PARAMETER MINIMUM TYPICAL MAXIMUM UNITS
device_area µm²
area µm²
width µm
height µm
DRC_errors
LVS_errors