From b059f37b5006bd12ae10f3e847fb394b2540aa6a Mon Sep 17 00:00:00 2001 From: David Shah Date: Sat, 18 Nov 2017 15:38:14 +0000 Subject: Add all cf_bits and pullup strength notes --- docs/ultraplus.html | 15 +++++++++++++++ icebox/icebox.py | 12 ++++++++++++ 2 files changed, 27 insertions(+) diff --git a/docs/ultraplus.html b/docs/ultraplus.html index e5706e6..da109b5 100644 --- a/docs/ultraplus.html +++ b/docs/ultraplus.html @@ -248,5 +248,20 @@ can be used as an open-drain IO using the standard IO cell.

RGB2_CURRENT[5:0](0, 30, CBIT_[7:2]) CURRENT_MODE(0, 28, CBIT_4) + + +

IO Changes

+

The IO tiles contain a few new bits compared to earlier ice40 devices. + The bits padeb_test_0 and + padeb_test_1 are set for all pins, + even unused ones, unless set as an output.

+

There are also some new bits used to control the pullup strength:

+ + + + + + +
StrengthCell 0Cell 1
3.3kΩcf_bit_32
B7[10]		cf_bit_36
B13[10]
6.8kΩcf_bit_33
B6[10]		cf_bit_37
B12[10]
10kΩcf_bit_34
B7[15]		cf_bit_38
B13[15]
100kΩ
(default)		!cf_bit_35
!B6[15]		!cf_bit_39
!B12[15]
diff --git a/icebox/icebox.py b/icebox/icebox.py index ce2a3cd..6b0dfd8 100644 --- a/icebox/icebox.py +++ b/icebox/icebox.py @@ -4808,13 +4808,25 @@ logictile_384_db.append([["B1[50]"], "CarryInSet"]) iotile_t_5k_db = list(iotile_t_db) iotile_t_5k_db.append([["B14[15]"], "IoCtrl", "padeb_test_1"]) iotile_t_5k_db.append([["B15[14]"], "IoCtrl", "padeb_test_0"]) +iotile_t_5k_db.append([["B7[10]"], "IoCtrl", "cf_bit_32"]) +iotile_t_5k_db.append([["B6[10]"], "IoCtrl", "cf_bit_33"]) +iotile_t_5k_db.append([["B7[15]"], "IoCtrl", "cf_bit_34"]) iotile_t_5k_db.append([["B6[15]"], "IoCtrl", "cf_bit_35"]) +iotile_t_5k_db.append([["B13[10]"], "IoCtrl", "cf_bit_36"]) +iotile_t_5k_db.append([["B12[10]"], "IoCtrl", "cf_bit_37"]) +iotile_t_5k_db.append([["B13[15]"], "IoCtrl", "cf_bit_38"]) iotile_t_5k_db.append([["B12[15]"], "IoCtrl", "cf_bit_39"]) iotile_b_5k_db = list(iotile_b_db) iotile_b_5k_db.append([["B14[15]"], "IoCtrl", "padeb_test_1"]) iotile_b_5k_db.append([["B15[14]"], "IoCtrl", "padeb_test_0"]) +iotile_b_5k_db.append([["B7[10]"], "IoCtrl", "cf_bit_32"]) +iotile_b_5k_db.append([["B6[10]"], "IoCtrl", "cf_bit_33"]) +iotile_b_5k_db.append([["B7[15]"], "IoCtrl", "cf_bit_34"]) iotile_b_5k_db.append([["B6[15]"], "IoCtrl", "cf_bit_35"]) +iotile_b_5k_db.append([["B13[10]"], "IoCtrl", "cf_bit_36"]) +iotile_b_5k_db.append([["B12[10]"], "IoCtrl", "cf_bit_37"]) +iotile_b_5k_db.append([["B13[15]"], "IoCtrl", "cf_bit_38"]) iotile_b_5k_db.append([["B12[15]"], "IoCtrl", "cf_bit_39"]) for db in [iotile_l_db, iotile_r_db, iotile_t_db, iotile_b_db, iotile_t_5k_db, iotile_b_5k_db, logictile_db, logictile_5k_db, logictile_8k_db, logictile_384_db, rambtile_db, ramttile_db, rambtile_5k_db, ramttile_5k_db, rambtile_8k_db, ramttile_8k_db, dsp0_5k_db, dsp1_5k_db, dsp2_5k_db, dsp3_5k_db, ipcon_5k_db]: -- cgit v1.2.3